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Finding the Fourth Proportional to 251,382.76, 377,113.56 and 91,472.56

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Solution

The fourth proportional to 251,382.76, 377,113.56 and 91,472.56 is: 137,223.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,382.76 : 377,113.56 = 91,472.56 : x
  2. Step 2: Convert to fraction form
    251,382.76/377,113.56 = 91,472.56/x
  3. Step 3: Cross multiply
    251,382.76x = 377,113.56 × 91,472.56
  4. Step 4: Simplify right side
    251,382.76x = 34,495,542,743.91
  5. Step 5: Solve for x
    x = 34,495,542,743.91/251,382.76
  6. Step 6: Final answer
    x = 137,223.18

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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.