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Finding the Fourth Proportional to 701.61, 968.17 and 386.85

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Solution

The fourth proportional to 701.61, 968.17 and 386.85 is: 533.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.61 : 968.17 = 386.85 : x
  2. Step 2: Convert to fraction form
    701.61/968.17 = 386.85/x
  3. Step 3: Cross multiply
    701.61x = 968.17 × 386.85
  4. Step 4: Simplify right side
    701.61x = 374,535.60
  5. Step 5: Solve for x
    x = 374,535.60/701.61
  6. Step 6: Final answer
    x = 533.82

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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.