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Finding the Fourth Proportional to 188.07, 280.58 and 167.55

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Solution

The fourth proportional to 188.07, 280.58 and 167.55 is: 249.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.07 : 280.58 = 167.55 : x
  2. Step 2: Convert to fraction form
    188.07/280.58 = 167.55/x
  3. Step 3: Cross multiply
    188.07x = 280.58 × 167.55
  4. Step 4: Simplify right side
    188.07x = 47,011.18
  5. Step 5: Solve for x
    x = 47,011.18/188.07
  6. Step 6: Final answer
    x = 249.97

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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.