Home / 424,715.20-637,294.13-172,182.31

Finding the Fourth Proportional to 424,715.20, 637,294.13 and 172,182.31

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Solution

The fourth proportional to 424,715.20, 637,294.13 and 172,182.31 is: 258,363.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,715.20 : 637,294.13 = 172,182.31 : x
  2. Step 2: Convert to fraction form
    424,715.20/637,294.13 = 172,182.31/x
  3. Step 3: Cross multiply
    424,715.20x = 637,294.13 × 172,182.31
  4. Step 4: Simplify right side
    424,715.20x = 109,730,773,644.38
  5. Step 5: Solve for x
    x = 109,730,773,644.38/424,715.20
  6. Step 6: Final answer
    x = 258,363.19

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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.