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Finding the Fourth Proportional to 302,471.28, 453,672.36 and 80,872.56

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Solution

The fourth proportional to 302,471.28, 453,672.36 and 80,872.56 is: 121,299.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,471.28 : 453,672.36 = 80,872.56 : x
  2. Step 2: Convert to fraction form
    302,471.28/453,672.36 = 80,872.56/x
  3. Step 3: Cross multiply
    302,471.28x = 453,672.36 × 80,872.56
  4. Step 4: Simplify right side
    302,471.28x = 36,689,645,154.44
  5. Step 5: Solve for x
    x = 36,689,645,154.44/302,471.28
  6. Step 6: Final answer
    x = 121,299.60

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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.