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Finding the Fourth Proportional to 188.55, 282.81 and 101.94

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Solution

The fourth proportional to 188.55, 282.81 and 101.94 is: 152.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.55 : 282.81 = 101.94 : x
  2. Step 2: Convert to fraction form
    188.55/282.81 = 101.94/x
  3. Step 3: Cross multiply
    188.55x = 282.81 × 101.94
  4. Step 4: Simplify right side
    188.55x = 28,829.65
  5. Step 5: Solve for x
    x = 28,829.65/188.55
  6. Step 6: Final answer
    x = 152.90

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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.