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Finding the Fourth Proportional to 701.12, 967.12 and 515.36

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Solution

The fourth proportional to 701.12, 967.12 and 515.36 is: 710.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.12 : 967.12 = 515.36 : x
  2. Step 2: Convert to fraction form
    701.12/967.12 = 515.36/x
  3. Step 3: Cross multiply
    701.12x = 967.12 × 515.36
  4. Step 4: Simplify right side
    701.12x = 498,414.96
  5. Step 5: Solve for x
    x = 498,414.96/701.12
  6. Step 6: Final answer
    x = 710.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.