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Finding the Fourth Proportional to 188.46, 282.70 and 159.84

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Solution

The fourth proportional to 188.46, 282.70 and 159.84 is: 239.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.46 : 282.70 = 159.84 : x
  2. Step 2: Convert to fraction form
    188.46/282.70 = 159.84/x
  3. Step 3: Cross multiply
    188.46x = 282.70 × 159.84
  4. Step 4: Simplify right side
    188.46x = 45,186.77
  5. Step 5: Solve for x
    x = 45,186.77/188.46
  6. Step 6: Final answer
    x = 239.77

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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.