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Finding the Fourth Proportional to 252,041.40, 378,135.92 and 74,553.14

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Solution

The fourth proportional to 252,041.40, 378,135.92 and 74,553.14 is: 111,851.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,041.40 : 378,135.92 = 74,553.14 : x
  2. Step 2: Convert to fraction form
    252,041.40/378,135.92 = 74,553.14/x
  3. Step 3: Cross multiply
    252,041.40x = 378,135.92 × 74,553.14
  4. Step 4: Simplify right side
    252,041.40x = 28,191,217,919.34
  5. Step 5: Solve for x
    x = 28,191,217,919.34/252,041.40
  6. Step 6: Final answer
    x = 111,851.54

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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.