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Finding the Fourth Proportional to 144.44, 215.19 and 135.60

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Solution

The fourth proportional to 144.44, 215.19 and 135.60 is: 202.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    144.44 : 215.19 = 135.60 : x
  2. Step 2: Convert to fraction form
    144.44/215.19 = 135.60/x
  3. Step 3: Cross multiply
    144.44x = 215.19 × 135.60
  4. Step 4: Simplify right side
    144.44x = 29,179.76
  5. Step 5: Solve for x
    x = 29,179.76/144.44
  6. Step 6: Final answer
    x = 202.02

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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.