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Finding the Fourth Proportional to 325,432.60, 488,103.90 and 100,947.40

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Solution

The fourth proportional to 325,432.60, 488,103.90 and 100,947.40 is: 151,407.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,432.60 : 488,103.90 = 100,947.40 : x
  2. Step 2: Convert to fraction form
    325,432.60/488,103.90 = 100,947.40/x
  3. Step 3: Cross multiply
    325,432.60x = 488,103.90 × 100,947.40
  4. Step 4: Simplify right side
    325,432.60x = 49,272,819,634.86
  5. Step 5: Solve for x
    x = 49,272,819,634.86/325,432.60
  6. Step 6: Final answer
    x = 151,407.14

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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.