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Finding the Fourth Proportional to 500.40, 749.34 and 282.96

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Solution

The fourth proportional to 500.40, 749.34 and 282.96 is: 423.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.40 : 749.34 = 282.96 : x
  2. Step 2: Convert to fraction form
    500.40/749.34 = 282.96/x
  3. Step 3: Cross multiply
    500.40x = 749.34 × 282.96
  4. Step 4: Simplify right side
    500.40x = 212,033.25
  5. Step 5: Solve for x
    x = 212,033.25/500.40
  6. Step 6: Final answer
    x = 423.73

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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.