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Finding the Fourth Proportional to 522,075.60, 783,113.40 and 242,139.60

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Solution

The fourth proportional to 522,075.60, 783,113.40 and 242,139.60 is: 363,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,075.60 : 783,113.40 = 242,139.60 : x
  2. Step 2: Convert to fraction form
    522,075.60/783,113.40 = 242,139.60/x
  3. Step 3: Cross multiply
    522,075.60x = 783,113.40 × 242,139.60
  4. Step 4: Simplify right side
    522,075.60x = 189,622,765,430.64
  5. Step 5: Solve for x
    x = 189,622,765,430.64/522,075.60
  6. Step 6: Final answer
    x = 363,209.40

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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.