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Finding the Fourth Proportional to 283.08, 424.47 and 100.38

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Solution

The fourth proportional to 283.08, 424.47 and 100.38 is: 150.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.08 : 424.47 = 100.38 : x
  2. Step 2: Convert to fraction form
    283.08/424.47 = 100.38/x
  3. Step 3: Cross multiply
    283.08x = 424.47 × 100.38
  4. Step 4: Simplify right side
    283.08x = 42,608.30
  5. Step 5: Solve for x
    x = 42,608.30/283.08
  6. Step 6: Final answer
    x = 150.52

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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.