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Finding the Fourth Proportional to 252,292.32, 378,372.87 and 74,751.66

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Solution

The fourth proportional to 252,292.32, 378,372.87 and 74,751.66 is: 112,108.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,292.32 : 378,372.87 = 74,751.66 : x
  2. Step 2: Convert to fraction form
    252,292.32/378,372.87 = 74,751.66/x
  3. Step 3: Cross multiply
    252,292.32x = 378,372.87 × 74,751.66
  4. Step 4: Simplify right side
    252,292.32x = 28,284,000,131.46
  5. Step 5: Solve for x
    x = 28,284,000,131.46/252,292.32
  6. Step 6: Final answer
    x = 112,108.05

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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.