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Finding the Fourth Proportional to 252,042.48, 378,063.72 and 74,535.66

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Solution

The fourth proportional to 252,042.48, 378,063.72 and 74,535.66 is: 111,803.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,042.48 : 378,063.72 = 74,535.66 : x
  2. Step 2: Convert to fraction form
    252,042.48/378,063.72 = 74,535.66/x
  3. Step 3: Cross multiply
    252,042.48x = 378,063.72 × 74,535.66
  4. Step 4: Simplify right side
    252,042.48x = 28,179,228,892.26
  5. Step 5: Solve for x
    x = 28,179,228,892.26/252,042.48
  6. Step 6: Final answer
    x = 111,803.49

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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.