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Finding the Fourth Proportional to 215,925.60, 323,747.60 and 193,807.20

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Solution

The fourth proportional to 215,925.60, 323,747.60 and 193,807.20 is: 290,584.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,925.60 : 323,747.60 = 193,807.20 : x
  2. Step 2: Convert to fraction form
    215,925.60/323,747.60 = 193,807.20/x
  3. Step 3: Cross multiply
    215,925.60x = 323,747.60 × 193,807.20
  4. Step 4: Simplify right side
    215,925.60x = 62,744,615,862.72
  5. Step 5: Solve for x
    x = 62,744,615,862.72/215,925.60
  6. Step 6: Final answer
    x = 290,584.42

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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.