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Finding the Fourth Proportional to 484.28, 727.02 and 354.28

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Solution

The fourth proportional to 484.28, 727.02 and 354.28 is: 531.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.28 : 727.02 = 354.28 : x
  2. Step 2: Convert to fraction form
    484.28/727.02 = 354.28/x
  3. Step 3: Cross multiply
    484.28x = 727.02 × 354.28
  4. Step 4: Simplify right side
    484.28x = 257,568.65
  5. Step 5: Solve for x
    x = 257,568.65/484.28
  6. Step 6: Final answer
    x = 531.86

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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.