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Finding the Fourth Proportional to 615.22, 844.22 and 559.53

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Solution

The fourth proportional to 615.22, 844.22 and 559.53 is: 767.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.22 : 844.22 = 559.53 : x
  2. Step 2: Convert to fraction form
    615.22/844.22 = 559.53/x
  3. Step 3: Cross multiply
    615.22x = 844.22 × 559.53
  4. Step 4: Simplify right side
    615.22x = 472,367.82
  5. Step 5: Solve for x
    x = 472,367.82/615.22
  6. Step 6: Final answer
    x = 767.81

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.