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Finding the Fourth Proportional to 185,888, 278,675.22 and 80,627.68

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Solution

The fourth proportional to 185,888, 278,675.22 and 80,627.68 is: 120,873.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,888 : 278,675.22 = 80,627.68 : x
  2. Step 2: Convert to fraction form
    185,888/278,675.22 = 80,627.68/x
  3. Step 3: Cross multiply
    185,888x = 278,675.22 × 80,627.68
  4. Step 4: Simplify right side
    185,888x = 22,468,936,462.09
  5. Step 5: Solve for x
    x = 22,468,936,462.09/185,888
  6. Step 6: Final answer
    x = 120,873.52

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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.