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Finding the Fourth Proportional to 675.71, 932.48 and 380.97

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Solution

The fourth proportional to 675.71, 932.48 and 380.97 is: 525.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.71 : 932.48 = 380.97 : x
  2. Step 2: Convert to fraction form
    675.71/932.48 = 380.97/x
  3. Step 3: Cross multiply
    675.71x = 932.48 × 380.97
  4. Step 4: Simplify right side
    675.71x = 355,247.33
  5. Step 5: Solve for x
    x = 355,247.33/675.71
  6. Step 6: Final answer
    x = 525.74

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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.