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Finding the Fourth Proportional to 282.84, 424.16 and 100.19

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Solution

The fourth proportional to 282.84, 424.16 and 100.19 is: 150.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    282.84 : 424.16 = 100.19 : x
  2. Step 2: Convert to fraction form
    282.84/424.16 = 100.19/x
  3. Step 3: Cross multiply
    282.84x = 424.16 × 100.19
  4. Step 4: Simplify right side
    282.84x = 42,493.97
  5. Step 5: Solve for x
    x = 42,493.97/282.84
  6. Step 6: Final answer
    x = 150.24

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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.