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Finding the Fourth Proportional to 252,168.32, 378,372.71 and 157,372.76

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Solution

The fourth proportional to 252,168.32, 378,372.71 and 157,372.76 is: 236,134.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,168.32 : 378,372.71 = 157,372.76 : x
  2. Step 2: Convert to fraction form
    252,168.32/378,372.71 = 157,372.76/x
  3. Step 3: Cross multiply
    252,168.32x = 378,372.71 × 157,372.76
  4. Step 4: Simplify right side
    252,168.32x = 59,545,556,182.95
  5. Step 5: Solve for x
    x = 59,545,556,182.95/252,168.32
  6. Step 6: Final answer
    x = 236,134.17

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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.