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Finding the Fourth Proportional to 483.46, 667.20 and 372.76

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Solution

The fourth proportional to 483.46, 667.20 and 372.76 is: 514.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.46 : 667.20 = 372.76 : x
  2. Step 2: Convert to fraction form
    483.46/667.20 = 372.76/x
  3. Step 3: Cross multiply
    483.46x = 667.20 × 372.76
  4. Step 4: Simplify right side
    483.46x = 248,705.47
  5. Step 5: Solve for x
    x = 248,705.47/483.46
  6. Step 6: Final answer
    x = 514.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.