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Finding the Fourth Proportional to 700.48, 966.62 and 385.72

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Solution

The fourth proportional to 700.48, 966.62 and 385.72 is: 532.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.48 : 966.62 = 385.72 : x
  2. Step 2: Convert to fraction form
    700.48/966.62 = 385.72/x
  3. Step 3: Cross multiply
    700.48x = 966.62 × 385.72
  4. Step 4: Simplify right side
    700.48x = 372,843.95
  5. Step 5: Solve for x
    x = 372,843.95/700.48
  6. Step 6: Final answer
    x = 532.27

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