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Finding the Fourth Proportional to 700.68, 966.92 and 385.95

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Solution

The fourth proportional to 700.68, 966.92 and 385.95 is: 532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.68 : 966.92 = 385.95 : x
  2. Step 2: Convert to fraction form
    700.68/966.92 = 385.95/x
  3. Step 3: Cross multiply
    700.68x = 966.92 × 385.95
  4. Step 4: Simplify right side
    700.68x = 373,182.77
  5. Step 5: Solve for x
    x = 373,182.77/700.68
  6. Step 6: Final answer
    x = 532.60

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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.