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Finding the Fourth Proportional to 200.80, 301.32 and 200.08

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Solution

The fourth proportional to 200.80, 301.32 and 200.08 is: 300.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.80 : 301.32 = 200.08 : x
  2. Step 2: Convert to fraction form
    200.80/301.32 = 200.08/x
  3. Step 3: Cross multiply
    200.80x = 301.32 × 200.08
  4. Step 4: Simplify right side
    200.80x = 60,288.11
  5. Step 5: Solve for x
    x = 60,288.11/200.80
  6. Step 6: Final answer
    x = 300.24

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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.