Home / 492,144.20-738,216.30-243,312.20

Finding the Fourth Proportional to 492,144.20, 738,216.30 and 243,312.20

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Solution

The fourth proportional to 492,144.20, 738,216.30 and 243,312.20 is: 364,968.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,144.20 : 738,216.30 = 243,312.20 : x
  2. Step 2: Convert to fraction form
    492,144.20/738,216.30 = 243,312.20/x
  3. Step 3: Cross multiply
    492,144.20x = 738,216.30 × 243,312.20
  4. Step 4: Simplify right side
    492,144.20x = 179,617,032,028.86
  5. Step 5: Solve for x
    x = 179,617,032,028.86/492,144.20
  6. Step 6: Final answer
    x = 364,968.30

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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.