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Finding the Fourth Proportional to 616.21, 844.07 and 608.31

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Solution

The fourth proportional to 616.21, 844.07 and 608.31 is: 833.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.21 : 844.07 = 608.31 : x
  2. Step 2: Convert to fraction form
    616.21/844.07 = 608.31/x
  3. Step 3: Cross multiply
    616.21x = 844.07 × 608.31
  4. Step 4: Simplify right side
    616.21x = 513,456.60
  5. Step 5: Solve for x
    x = 513,456.60/616.21
  6. Step 6: Final answer
    x = 833.25

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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.