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Finding the Fourth Proportional to 200.90, 277.23 and 141.82

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Solution

The fourth proportional to 200.90, 277.23 and 141.82 is: 195.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.90 : 277.23 = 141.82 : x
  2. Step 2: Convert to fraction form
    200.90/277.23 = 141.82/x
  3. Step 3: Cross multiply
    200.90x = 277.23 × 141.82
  4. Step 4: Simplify right side
    200.90x = 39,317.81
  5. Step 5: Solve for x
    x = 39,317.81/200.90
  6. Step 6: Final answer
    x = 195.71

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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.