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Finding the Fourth Proportional to 532.72, 798.90 and 162.44

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Solution

The fourth proportional to 532.72, 798.90 and 162.44 is: 243.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.72 : 798.90 = 162.44 : x
  2. Step 2: Convert to fraction form
    532.72/798.90 = 162.44/x
  3. Step 3: Cross multiply
    532.72x = 798.90 × 162.44
  4. Step 4: Simplify right side
    532.72x = 129,773.32
  5. Step 5: Solve for x
    x = 129,773.32/532.72
  6. Step 6: Final answer
    x = 243.61

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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.