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Finding the Fourth Proportional to 450.97, 675.91 and 190.87

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Solution

The fourth proportional to 450.97, 675.91 and 190.87 is: 286.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.97 : 675.91 = 190.87 : x
  2. Step 2: Convert to fraction form
    450.97/675.91 = 190.87/x
  3. Step 3: Cross multiply
    450.97x = 675.91 × 190.87
  4. Step 4: Simplify right side
    450.97x = 129,010.94
  5. Step 5: Solve for x
    x = 129,010.94/450.97
  6. Step 6: Final answer
    x = 286.07

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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.