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Finding the Fourth Proportional to 499.38, 749.06 and 282.95

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Solution

The fourth proportional to 499.38, 749.06 and 282.95 is: 424.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.38 : 749.06 = 282.95 : x
  2. Step 2: Convert to fraction form
    499.38/749.06 = 282.95/x
  3. Step 3: Cross multiply
    499.38x = 749.06 × 282.95
  4. Step 4: Simplify right side
    499.38x = 211,946.53
  5. Step 5: Solve for x
    x = 211,946.53/499.38
  6. Step 6: Final answer
    x = 424.42

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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.