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Finding the Fourth Proportional to 439,952.61, 607,131.05 and 238,748.61

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Solution

The fourth proportional to 439,952.61, 607,131.05 and 238,748.61 is: 329,471.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,952.61 : 607,131.05 = 238,748.61 : x
  2. Step 2: Convert to fraction form
    439,952.61/607,131.05 = 238,748.61/x
  3. Step 3: Cross multiply
    439,952.61x = 607,131.05 × 238,748.61
  4. Step 4: Simplify right side
    439,952.61x = 144,951,694,275.34
  5. Step 5: Solve for x
    x = 144,951,694,275.34/439,952.61
  6. Step 6: Final answer
    x = 329,471.15

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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.