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Finding the Fourth Proportional to 282.82, 424.14 and 159.61

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Solution

The fourth proportional to 282.82, 424.14 and 159.61 is: 239.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    282.82 : 424.14 = 159.61 : x
  2. Step 2: Convert to fraction form
    282.82/424.14 = 159.61/x
  3. Step 3: Cross multiply
    282.82x = 424.14 × 159.61
  4. Step 4: Simplify right side
    282.82x = 67,696.99
  5. Step 5: Solve for x
    x = 67,696.99/282.82
  6. Step 6: Final answer
    x = 239.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.