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Finding the Fourth Proportional to 701.59, 968.18 and 386.84

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Solution

The fourth proportional to 701.59, 968.18 and 386.84 is: 533.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.59 : 968.18 = 386.84 : x
  2. Step 2: Convert to fraction form
    701.59/968.18 = 386.84/x
  3. Step 3: Cross multiply
    701.59x = 968.18 × 386.84
  4. Step 4: Simplify right side
    701.59x = 374,526.88
  5. Step 5: Solve for x
    x = 374,526.88/701.59
  6. Step 6: Final answer
    x = 533.83

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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.