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Finding the Fourth Proportional to 252,182.27, 378,278.81 and 74,692.91

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Solution

The fourth proportional to 252,182.27, 378,278.81 and 74,692.91 is: 112,040.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,182.27 : 378,278.81 = 74,692.91 : x
  2. Step 2: Convert to fraction form
    252,182.27/378,278.81 = 74,692.91/x
  3. Step 3: Cross multiply
    252,182.27x = 378,278.81 × 74,692.91
  4. Step 4: Simplify right side
    252,182.27x = 28,254,745,110.24
  5. Step 5: Solve for x
    x = 28,254,745,110.24/252,182.27
  6. Step 6: Final answer
    x = 112,040.97

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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.