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Finding the Fourth Proportional to 450.11, 675.20 and 125.47

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Solution

The fourth proportional to 450.11, 675.20 and 125.47 is: 188.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.11 : 675.20 = 125.47 : x
  2. Step 2: Convert to fraction form
    450.11/675.20 = 125.47/x
  3. Step 3: Cross multiply
    450.11x = 675.20 × 125.47
  4. Step 4: Simplify right side
    450.11x = 84,717.34
  5. Step 5: Solve for x
    x = 84,717.34/450.11
  6. Step 6: Final answer
    x = 188.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.