Home / 308,087.27-425,169.10-172,136.19

Finding the Fourth Proportional to 308,087.27, 425,169.10 and 172,136.19

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Solution

The fourth proportional to 308,087.27, 425,169.10 and 172,136.19 is: 237,552.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,087.27 : 425,169.10 = 172,136.19 : x
  2. Step 2: Convert to fraction form
    308,087.27/425,169.10 = 172,136.19/x
  3. Step 3: Cross multiply
    308,087.27x = 425,169.10 × 172,136.19
  4. Step 4: Simplify right side
    308,087.27x = 73,186,988,397.71
  5. Step 5: Solve for x
    x = 73,186,988,397.71/308,087.27
  6. Step 6: Final answer
    x = 237,552.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.