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Finding the Fourth Proportional to 188.01, 281.79 and 144.32

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Solution

The fourth proportional to 188.01, 281.79 and 144.32 is: 216.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.01 : 281.79 = 144.32 : x
  2. Step 2: Convert to fraction form
    188.01/281.79 = 144.32/x
  3. Step 3: Cross multiply
    188.01x = 281.79 × 144.32
  4. Step 4: Simplify right side
    188.01x = 40,666.52
  5. Step 5: Solve for x
    x = 40,666.52/188.01
  6. Step 6: Final answer
    x = 216.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.