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Finding the Fourth Proportional to 282.20, 425.26 and 242.14

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Solution

The fourth proportional to 282.20, 425.26 and 242.14 is: 364.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    282.20 : 425.26 = 242.14 : x
  2. Step 2: Convert to fraction form
    282.20/425.26 = 242.14/x
  3. Step 3: Cross multiply
    282.20x = 425.26 × 242.14
  4. Step 4: Simplify right side
    282.20x = 102,972.46
  5. Step 5: Solve for x
    x = 102,972.46/282.20
  6. Step 6: Final answer
    x = 364.89

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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.