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Finding the Fourth Proportional to 532.18, 734.46 and 296.21

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Solution

The fourth proportional to 532.18, 734.46 and 296.21 is: 408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.18 : 734.46 = 296.21 : x
  2. Step 2: Convert to fraction form
    532.18/734.46 = 296.21/x
  3. Step 3: Cross multiply
    532.18x = 734.46 × 296.21
  4. Step 4: Simplify right side
    532.18x = 217,555.12
  5. Step 5: Solve for x
    x = 217,555.12/532.18
  6. Step 6: Final answer
    x = 408.80

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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.