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Finding the Fourth Proportional to 308,545.54, 425,832.26 and 172,587.04

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Solution

The fourth proportional to 308,545.54, 425,832.26 and 172,587.04 is: 238,192.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,545.54 : 425,832.26 = 172,587.04 : x
  2. Step 2: Convert to fraction form
    308,545.54/425,832.26 = 172,587.04/x
  3. Step 3: Cross multiply
    308,545.54x = 425,832.26 × 172,587.04
  4. Step 4: Simplify right side
    308,545.54x = 73,493,128,426.98
  5. Step 5: Solve for x
    x = 73,493,128,426.98/308,545.54
  6. Step 6: Final answer
    x = 238,192.16

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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.