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Finding the Fourth Proportional to 492.48, 737.92 and 248.64

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Solution

The fourth proportional to 492.48, 737.92 and 248.64 is: 372.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.48 : 737.92 = 248.64 : x
  2. Step 2: Convert to fraction form
    492.48/737.92 = 248.64/x
  3. Step 3: Cross multiply
    492.48x = 737.92 × 248.64
  4. Step 4: Simplify right side
    492.48x = 183,476.43
  5. Step 5: Solve for x
    x = 183,476.43/492.48
  6. Step 6: Final answer
    x = 372.56

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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.