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Finding the Fourth Proportional to 498.24, 747.60 and 376.80

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Solution

The fourth proportional to 498.24, 747.60 and 376.80 is: 565.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    498.24 : 747.60 = 376.80 : x
  2. Step 2: Convert to fraction form
    498.24/747.60 = 376.80/x
  3. Step 3: Cross multiply
    498.24x = 747.60 × 376.80
  4. Step 4: Simplify right side
    498.24x = 281,695.68
  5. Step 5: Solve for x
    x = 281,695.68/498.24
  6. Step 6: Final answer
    x = 565.38

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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.