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Finding the Fourth Proportional to 144.94, 216.53 and 116.12

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Solution

The fourth proportional to 144.94, 216.53 and 116.12 is: 173.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144.94 : 216.53 = 116.12 : x
  2. Step 2: Convert to fraction form
    144.94/216.53 = 116.12/x
  3. Step 3: Cross multiply
    144.94x = 216.53 × 116.12
  4. Step 4: Simplify right side
    144.94x = 25,143.46
  5. Step 5: Solve for x
    x = 25,143.46/144.94
  6. Step 6: Final answer
    x = 173.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.