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Finding the Fourth Proportional to 672.42, 927.97 and 373.69

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Solution

The fourth proportional to 672.42, 927.97 and 373.69 is: 515.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.42 : 927.97 = 373.69 : x
  2. Step 2: Convert to fraction form
    672.42/927.97 = 373.69/x
  3. Step 3: Cross multiply
    672.42x = 927.97 × 373.69
  4. Step 4: Simplify right side
    672.42x = 346,773.11
  5. Step 5: Solve for x
    x = 346,773.11/672.42
  6. Step 6: Final answer
    x = 515.71

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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.