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Finding the Fourth Proportional to 252,276.60, 378,406.71 and 102,472.56

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Solution

The fourth proportional to 252,276.60, 378,406.71 and 102,472.56 is: 153,705.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,276.60 : 378,406.71 = 102,472.56 : x
  2. Step 2: Convert to fraction form
    252,276.60/378,406.71 = 102,472.56/x
  3. Step 3: Cross multiply
    252,276.60x = 378,406.71 × 102,472.56
  4. Step 4: Simplify right side
    252,276.60x = 38,776,304,294.88
  5. Step 5: Solve for x
    x = 38,776,304,294.88/252,276.60
  6. Step 6: Final answer
    x = 153,705.51

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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.