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Finding the Fourth Proportional to 299,661.79, 413,545.84 and 172,337.49

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Solution

The fourth proportional to 299,661.79, 413,545.84 and 172,337.49 is: 237,832.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,661.79 : 413,545.84 = 172,337.49 : x
  2. Step 2: Convert to fraction form
    299,661.79/413,545.84 = 172,337.49/x
  3. Step 3: Cross multiply
    299,661.79x = 413,545.84 × 172,337.49
  4. Step 4: Simplify right side
    299,661.79x = 71,269,452,065.54
  5. Step 5: Solve for x
    x = 71,269,452,065.54/299,661.79
  6. Step 6: Final answer
    x = 237,832.97

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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.