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Finding the Fourth Proportional to 282.15, 424.13 and 242.06

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Solution

The fourth proportional to 282.15, 424.13 and 242.06 is: 363.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    282.15 : 424.13 = 242.06 : x
  2. Step 2: Convert to fraction form
    282.15/424.13 = 242.06/x
  3. Step 3: Cross multiply
    282.15x = 424.13 × 242.06
  4. Step 4: Simplify right side
    282.15x = 102,661.58
  5. Step 5: Solve for x
    x = 102,661.58/282.15
  6. Step 6: Final answer
    x = 363.85

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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.