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Finding the Fourth Proportional to 200.86, 301.02 and 160.09

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Solution

The fourth proportional to 200.86, 301.02 and 160.09 is: 239.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.86 : 301.02 = 160.09 : x
  2. Step 2: Convert to fraction form
    200.86/301.02 = 160.09/x
  3. Step 3: Cross multiply
    200.86x = 301.02 × 160.09
  4. Step 4: Simplify right side
    200.86x = 48,190.29
  5. Step 5: Solve for x
    x = 48,190.29/200.86
  6. Step 6: Final answer
    x = 239.92

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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.