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Finding the Fourth Proportional to 273,432.88, 410,146.76 and 86,444.40

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Solution

The fourth proportional to 273,432.88, 410,146.76 and 86,444.40 is: 129,665.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,432.88 : 410,146.76 = 86,444.40 : x
  2. Step 2: Convert to fraction form
    273,432.88/410,146.76 = 86,444.40/x
  3. Step 3: Cross multiply
    273,432.88x = 410,146.76 × 86,444.40
  4. Step 4: Simplify right side
    273,432.88x = 35,454,890,580.14
  5. Step 5: Solve for x
    x = 35,454,890,580.14/273,432.88
  6. Step 6: Final answer
    x = 129,665.79

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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.