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Finding the Fourth Proportional to 512.90, 708.27 and 373.82

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Solution

The fourth proportional to 512.90, 708.27 and 373.82 is: 516.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    512.90 : 708.27 = 373.82 : x
  2. Step 2: Convert to fraction form
    512.90/708.27 = 373.82/x
  3. Step 3: Cross multiply
    512.90x = 708.27 × 373.82
  4. Step 4: Simplify right side
    512.90x = 264,765.49
  5. Step 5: Solve for x
    x = 264,765.49/512.90
  6. Step 6: Final answer
    x = 516.21

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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.