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Finding the Fourth Proportional to 200.97, 301.50 and 56.69

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Solution

The fourth proportional to 200.97, 301.50 and 56.69 is: 85.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.97 : 301.50 = 56.69 : x
  2. Step 2: Convert to fraction form
    200.97/301.50 = 56.69/x
  3. Step 3: Cross multiply
    200.97x = 301.50 × 56.69
  4. Step 4: Simplify right side
    200.97x = 17,092.04
  5. Step 5: Solve for x
    x = 17,092.04/200.97
  6. Step 6: Final answer
    x = 85.05

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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.