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Finding the Fourth Proportional to 532.25, 798.17 and 315.57

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Solution

The fourth proportional to 532.25, 798.17 and 315.57 is: 473.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.25 : 798.17 = 315.57 : x
  2. Step 2: Convert to fraction form
    532.25/798.17 = 315.57/x
  3. Step 3: Cross multiply
    532.25x = 798.17 × 315.57
  4. Step 4: Simplify right side
    532.25x = 251,876.93
  5. Step 5: Solve for x
    x = 251,876.93/532.25
  6. Step 6: Final answer
    x = 473.23

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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.