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Finding the Fourth Proportional to 200.02, 275.95 and 121.27

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Solution

The fourth proportional to 200.02, 275.95 and 121.27 is: 167.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.02 : 275.95 = 121.27 : x
  2. Step 2: Convert to fraction form
    200.02/275.95 = 121.27/x
  3. Step 3: Cross multiply
    200.02x = 275.95 × 121.27
  4. Step 4: Simplify right side
    200.02x = 33,464.46
  5. Step 5: Solve for x
    x = 33,464.46/200.02
  6. Step 6: Final answer
    x = 167.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.