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Finding the Fourth Proportional to 225,602.71, 338,387.15 and 65,679.87

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Solution

The fourth proportional to 225,602.71, 338,387.15 and 65,679.87 is: 98,514.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,602.71 : 338,387.15 = 65,679.87 : x
  2. Step 2: Convert to fraction form
    225,602.71/338,387.15 = 65,679.87/x
  3. Step 3: Cross multiply
    225,602.71x = 338,387.15 × 65,679.87
  4. Step 4: Simplify right side
    225,602.71x = 22,225,224,021.67
  5. Step 5: Solve for x
    x = 22,225,224,021.67/225,602.71
  6. Step 6: Final answer
    x = 98,514.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.