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Finding the Fourth Proportional to 562.55, 843.82 and 401.56

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Solution

The fourth proportional to 562.55, 843.82 and 401.56 is: 602.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.55 : 843.82 = 401.56 : x
  2. Step 2: Convert to fraction form
    562.55/843.82 = 401.56/x
  3. Step 3: Cross multiply
    562.55x = 843.82 × 401.56
  4. Step 4: Simplify right side
    562.55x = 338,841.25
  5. Step 5: Solve for x
    x = 338,841.25/562.55
  6. Step 6: Final answer
    x = 602.34

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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.