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Finding the Fourth Proportional to 498.71, 747.87 and 151.94

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Solution

The fourth proportional to 498.71, 747.87 and 151.94 is: 227.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    498.71 : 747.87 = 151.94 : x
  2. Step 2: Convert to fraction form
    498.71/747.87 = 151.94/x
  3. Step 3: Cross multiply
    498.71x = 747.87 × 151.94
  4. Step 4: Simplify right side
    498.71x = 113,629.60
  5. Step 5: Solve for x
    x = 113,629.60/498.71
  6. Step 6: Final answer
    x = 227.85

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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.