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Finding the Fourth Proportional to 200.05, 275.94 and 133.66

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Solution

The fourth proportional to 200.05, 275.94 and 133.66 is: 184.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.05 : 275.94 = 133.66 : x
  2. Step 2: Convert to fraction form
    200.05/275.94 = 133.66/x
  3. Step 3: Cross multiply
    200.05x = 275.94 × 133.66
  4. Step 4: Simplify right side
    200.05x = 36,881.45
  5. Step 5: Solve for x
    x = 36,881.45/200.05
  6. Step 6: Final answer
    x = 184.36

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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.