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Finding the Fourth Proportional to 480.58, 719.31 and 249.15

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Solution

The fourth proportional to 480.58, 719.31 and 249.15 is: 372.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.58 : 719.31 = 249.15 : x
  2. Step 2: Convert to fraction form
    480.58/719.31 = 249.15/x
  3. Step 3: Cross multiply
    480.58x = 719.31 × 249.15
  4. Step 4: Simplify right side
    480.58x = 179,212.49
  5. Step 5: Solve for x
    x = 179,212.49/480.58
  6. Step 6: Final answer
    x = 372.91

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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.