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Finding the Fourth Proportional to 672.23, 927.69 and 377.55

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Solution

The fourth proportional to 672.23, 927.69 and 377.55 is: 521.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.23 : 927.69 = 377.55 : x
  2. Step 2: Convert to fraction form
    672.23/927.69 = 377.55/x
  3. Step 3: Cross multiply
    672.23x = 927.69 × 377.55
  4. Step 4: Simplify right side
    672.23x = 350,247.47
  5. Step 5: Solve for x
    x = 350,247.47/672.23
  6. Step 6: Final answer
    x = 521.03

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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.