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Finding the Fourth Proportional to 373.52, 516.30 and 286.58

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Solution

The fourth proportional to 373.52, 516.30 and 286.58 is: 396.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.52 : 516.30 = 286.58 : x
  2. Step 2: Convert to fraction form
    373.52/516.30 = 286.58/x
  3. Step 3: Cross multiply
    373.52x = 516.30 × 286.58
  4. Step 4: Simplify right side
    373.52x = 147,961.25
  5. Step 5: Solve for x
    x = 147,961.25/373.52
  6. Step 6: Final answer
    x = 396.13

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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.