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Finding the Fourth Proportional to 498.96, 748.44 and 157.04

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Solution

The fourth proportional to 498.96, 748.44 and 157.04 is: 235.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    498.96 : 748.44 = 157.04 : x
  2. Step 2: Convert to fraction form
    498.96/748.44 = 157.04/x
  3. Step 3: Cross multiply
    498.96x = 748.44 × 157.04
  4. Step 4: Simplify right side
    498.96x = 117,535.02
  5. Step 5: Solve for x
    x = 117,535.02/498.96
  6. Step 6: Final answer
    x = 235.56

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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.