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Finding the Fourth Proportional to 532.52, 734.66 and 345.96

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Solution

The fourth proportional to 532.52, 734.66 and 345.96 is: 477.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.52 : 734.66 = 345.96 : x
  2. Step 2: Convert to fraction form
    532.52/734.66 = 345.96/x
  3. Step 3: Cross multiply
    532.52x = 734.66 × 345.96
  4. Step 4: Simplify right side
    532.52x = 254,162.97
  5. Step 5: Solve for x
    x = 254,162.97/532.52
  6. Step 6: Final answer
    x = 477.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.