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Finding the Fourth Proportional to 252,444.60, 378,745.47 and 74,952.54

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Solution

The fourth proportional to 252,444.60, 378,745.47 and 74,952.54 is: 112,452.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,444.60 : 378,745.47 = 74,952.54 : x
  2. Step 2: Convert to fraction form
    252,444.60/378,745.47 = 74,952.54/x
  3. Step 3: Cross multiply
    252,444.60x = 378,745.47 × 74,952.54
  4. Step 4: Simplify right side
    252,444.60x = 28,387,934,989.99
  5. Step 5: Solve for x
    x = 28,387,934,989.99/252,444.60
  6. Step 6: Final answer
    x = 112,452.14

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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.