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Finding the Fourth Proportional to 333.97, 500.28 and 247.40

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Solution

The fourth proportional to 333.97, 500.28 and 247.40 is: 370.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.97 : 500.28 = 247.40 : x
  2. Step 2: Convert to fraction form
    333.97/500.28 = 247.40/x
  3. Step 3: Cross multiply
    333.97x = 500.28 × 247.40
  4. Step 4: Simplify right side
    333.97x = 123,770.53
  5. Step 5: Solve for x
    x = 123,770.53/333.97
  6. Step 6: Final answer
    x = 370.60

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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.