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Finding the Fourth Proportional to 562.71, 843.92 and 357

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Solution

The fourth proportional to 562.71, 843.92 and 357 is: 535.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.71 : 843.92 = 357 : x
  2. Step 2: Convert to fraction form
    562.71/843.92 = 357/x
  3. Step 3: Cross multiply
    562.71x = 843.92 × 357
  4. Step 4: Simplify right side
    562.71x = 301,279.44
  5. Step 5: Solve for x
    x = 301,279.44/562.71
  6. Step 6: Final answer
    x = 535.41

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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.