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Finding the Fourth Proportional to 483.58, 724.14 and 300.42

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Solution

The fourth proportional to 483.58, 724.14 and 300.42 is: 449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.58 : 724.14 = 300.42 : x
  2. Step 2: Convert to fraction form
    483.58/724.14 = 300.42/x
  3. Step 3: Cross multiply
    483.58x = 724.14 × 300.42
  4. Step 4: Simplify right side
    483.58x = 217,546.14
  5. Step 5: Solve for x
    x = 217,546.14/483.58
  6. Step 6: Final answer
    x = 449.87

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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.