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Finding the Fourth Proportional to 144.91, 200.10 and 113.95

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Solution

The fourth proportional to 144.91, 200.10 and 113.95 is: 157.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    144.91 : 200.10 = 113.95 : x
  2. Step 2: Convert to fraction form
    144.91/200.10 = 113.95/x
  3. Step 3: Cross multiply
    144.91x = 200.10 × 113.95
  4. Step 4: Simplify right side
    144.91x = 22,801.40
  5. Step 5: Solve for x
    x = 22,801.40/144.91
  6. Step 6: Final answer
    x = 157.35

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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.