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Finding the Fourth Proportional to 482.88, 724.93 and 251.92

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Solution

The fourth proportional to 482.88, 724.93 and 251.92 is: 378.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.88 : 724.93 = 251.92 : x
  2. Step 2: Convert to fraction form
    482.88/724.93 = 251.92/x
  3. Step 3: Cross multiply
    482.88x = 724.93 × 251.92
  4. Step 4: Simplify right side
    482.88x = 182,624.37
  5. Step 5: Solve for x
    x = 182,624.37/482.88
  6. Step 6: Final answer
    x = 378.20

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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.