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Finding the Fourth Proportional to 373.41, 516.15 and 276.03

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Solution

The fourth proportional to 373.41, 516.15 and 276.03 is: 381.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.41 : 516.15 = 276.03 : x
  2. Step 2: Convert to fraction form
    373.41/516.15 = 276.03/x
  3. Step 3: Cross multiply
    373.41x = 516.15 × 276.03
  4. Step 4: Simplify right side
    373.41x = 142,472.88
  5. Step 5: Solve for x
    x = 142,472.88/373.41
  6. Step 6: Final answer
    x = 381.55

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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.