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Finding the Fourth Proportional to 252,101.92, 378,152.88 and 74,610.72

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Solution

The fourth proportional to 252,101.92, 378,152.88 and 74,610.72 is: 111,916.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,101.92 : 378,152.88 = 74,610.72 : x
  2. Step 2: Convert to fraction form
    252,101.92/378,152.88 = 74,610.72/x
  3. Step 3: Cross multiply
    252,101.92x = 378,152.88 × 74,610.72
  4. Step 4: Simplify right side
    252,101.92x = 28,214,258,646.87
  5. Step 5: Solve for x
    x = 28,214,258,646.87/252,101.92
  6. Step 6: Final answer
    x = 111,916.08

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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.