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Finding the Fourth Proportional to 200.50, 300.29 and 127.37

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Solution

The fourth proportional to 200.50, 300.29 and 127.37 is: 190.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.50 : 300.29 = 127.37 : x
  2. Step 2: Convert to fraction form
    200.50/300.29 = 127.37/x
  3. Step 3: Cross multiply
    200.50x = 300.29 × 127.37
  4. Step 4: Simplify right side
    200.50x = 38,247.94
  5. Step 5: Solve for x
    x = 38,247.94/200.50
  6. Step 6: Final answer
    x = 190.76

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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.