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Finding the Fourth Proportional to 282.53, 388.88 and 252.92

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Solution

The fourth proportional to 282.53, 388.88 and 252.92 is: 348.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    282.53 : 388.88 = 252.92 : x
  2. Step 2: Convert to fraction form
    282.53/388.88 = 252.92/x
  3. Step 3: Cross multiply
    282.53x = 388.88 × 252.92
  4. Step 4: Simplify right side
    282.53x = 98,353.59
  5. Step 5: Solve for x
    x = 98,353.59/282.53
  6. Step 6: Final answer
    x = 348.12

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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.