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Finding the Fourth Proportional to 450.28, 672.62 and 377.38

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Solution

The fourth proportional to 450.28, 672.62 and 377.38 is: 563.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.28 : 672.62 = 377.38 : x
  2. Step 2: Convert to fraction form
    450.28/672.62 = 377.38/x
  3. Step 3: Cross multiply
    450.28x = 672.62 × 377.38
  4. Step 4: Simplify right side
    450.28x = 253,833.34
  5. Step 5: Solve for x
    x = 253,833.34/450.28
  6. Step 6: Final answer
    x = 563.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.