Home / 424,712.27-636,625.55-172,167.09

Finding the Fourth Proportional to 424,712.27, 636,625.55 and 172,167.09

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Solution

The fourth proportional to 424,712.27, 636,625.55 and 172,167.09 is: 258,071.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,712.27 : 636,625.55 = 172,167.09 : x
  2. Step 2: Convert to fraction form
    424,712.27/636,625.55 = 172,167.09/x
  3. Step 3: Cross multiply
    424,712.27x = 636,625.55 × 172,167.09
  4. Step 4: Simplify right side
    424,712.27x = 109,605,967,502.31
  5. Step 5: Solve for x
    x = 109,605,967,502.31/424,712.27
  6. Step 6: Final answer
    x = 258,071.11

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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.