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Finding the Fourth Proportional to 299,661.39, 413,545.28 and 172,337.08

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Solution

The fourth proportional to 299,661.39, 413,545.28 and 172,337.08 is: 237,832.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,661.39 : 413,545.28 = 172,337.08 : x
  2. Step 2: Convert to fraction form
    299,661.39/413,545.28 = 172,337.08/x
  3. Step 3: Cross multiply
    299,661.39x = 413,545.28 × 172,337.08
  4. Step 4: Simplify right side
    299,661.39x = 71,269,186,002.98
  5. Step 5: Solve for x
    x = 71,269,186,002.98/299,661.39
  6. Step 6: Final answer
    x = 237,832.39

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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.