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Finding the Fourth Proportional to 483.05, 724.26 and 235.76

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Solution

The fourth proportional to 483.05, 724.26 and 235.76 is: 353.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.05 : 724.26 = 235.76 : x
  2. Step 2: Convert to fraction form
    483.05/724.26 = 235.76/x
  3. Step 3: Cross multiply
    483.05x = 724.26 × 235.76
  4. Step 4: Simplify right side
    483.05x = 170,747.92
  5. Step 5: Solve for x
    x = 170,747.92/483.05
  6. Step 6: Final answer
    x = 353.48

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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.