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Finding the Fourth Proportional to 415,665.97, 573,625.42 and 243,542.74

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Solution

The fourth proportional to 415,665.97, 573,625.42 and 243,542.74 is: 336,092.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,665.97 : 573,625.42 = 243,542.74 : x
  2. Step 2: Convert to fraction form
    415,665.97/573,625.42 = 243,542.74/x
  3. Step 3: Cross multiply
    415,665.97x = 573,625.42 × 243,542.74
  4. Step 4: Simplify right side
    415,665.97x = 139,702,309,074.10
  5. Step 5: Solve for x
    x = 139,702,309,074.10/415,665.97
  6. Step 6: Final answer
    x = 336,092.73

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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.