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Finding the Fourth Proportional to 385.03, 531.28 and 237.71

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Solution

The fourth proportional to 385.03, 531.28 and 237.71 is: 328.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    385.03 : 531.28 = 237.71 : x
  2. Step 2: Convert to fraction form
    385.03/531.28 = 237.71/x
  3. Step 3: Cross multiply
    385.03x = 531.28 × 237.71
  4. Step 4: Simplify right side
    385.03x = 126,290.57
  5. Step 5: Solve for x
    x = 126,290.57/385.03
  6. Step 6: Final answer
    x = 328.00

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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.