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Finding the Fourth Proportional to 532.49, 798.86 and 272.48

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Solution

The fourth proportional to 532.49, 798.86 and 272.48 is: 408.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.49 : 798.86 = 272.48 : x
  2. Step 2: Convert to fraction form
    532.49/798.86 = 272.48/x
  3. Step 3: Cross multiply
    532.49x = 798.86 × 272.48
  4. Step 4: Simplify right side
    532.49x = 217,676.24
  5. Step 5: Solve for x
    x = 217,676.24/532.49
  6. Step 6: Final answer
    x = 408.79

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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.