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Finding the Fourth Proportional to 435,422.79, 653,371.92 and 169,193.61

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Solution

The fourth proportional to 435,422.79, 653,371.92 and 169,193.61 is: 253,882.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,422.79 : 653,371.92 = 169,193.61 : x
  2. Step 2: Convert to fraction form
    435,422.79/653,371.92 = 169,193.61/x
  3. Step 3: Cross multiply
    435,422.79x = 653,371.92 × 169,193.61
  4. Step 4: Simplify right side
    435,422.79x = 110,546,353,817.43
  5. Step 5: Solve for x
    x = 110,546,353,817.43/435,422.79
  6. Step 6: Final answer
    x = 253,882.79

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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.