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Finding the Fourth Proportional to 282.60, 426.43 and 271.88

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Solution

The fourth proportional to 282.60, 426.43 and 271.88 is: 410.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    282.60 : 426.43 = 271.88 : x
  2. Step 2: Convert to fraction form
    282.60/426.43 = 271.88/x
  3. Step 3: Cross multiply
    282.60x = 426.43 × 271.88
  4. Step 4: Simplify right side
    282.60x = 115,937.79
  5. Step 5: Solve for x
    x = 115,937.79/282.60
  6. Step 6: Final answer
    x = 410.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.