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Finding the Fourth Proportional to 700.46, 966.66 and 385.73

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Solution

The fourth proportional to 700.46, 966.66 and 385.73 is: 532.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.46 : 966.66 = 385.73 : x
  2. Step 2: Convert to fraction form
    700.46/966.66 = 385.73/x
  3. Step 3: Cross multiply
    700.46x = 966.66 × 385.73
  4. Step 4: Simplify right side
    700.46x = 372,869.76
  5. Step 5: Solve for x
    x = 372,869.76/700.46
  6. Step 6: Final answer
    x = 532.32

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1.5x scale

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.