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Finding the Fourth Proportional to 483.38, 725.16 and 154.40

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Solution

The fourth proportional to 483.38, 725.16 and 154.40 is: 231.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.38 : 725.16 = 154.40 : x
  2. Step 2: Convert to fraction form
    483.38/725.16 = 154.40/x
  3. Step 3: Cross multiply
    483.38x = 725.16 × 154.40
  4. Step 4: Simplify right side
    483.38x = 111,964.70
  5. Step 5: Solve for x
    x = 111,964.70/483.38
  6. Step 6: Final answer
    x = 231.63

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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.