Home / 578,075.40-867,113.10-204,136.20

Finding the Fourth Proportional to 578,075.40, 867,113.10 and 204,136.20

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Solution

The fourth proportional to 578,075.40, 867,113.10 and 204,136.20 is: 306,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,075.40 : 867,113.10 = 204,136.20 : x
  2. Step 2: Convert to fraction form
    578,075.40/867,113.10 = 204,136.20/x
  3. Step 3: Cross multiply
    578,075.40x = 867,113.10 × 204,136.20
  4. Step 4: Simplify right side
    578,075.40x = 177,009,173,204.22
  5. Step 5: Solve for x
    x = 177,009,173,204.22/578,075.40
  6. Step 6: Final answer
    x = 306,204.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.