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Finding the Fourth Proportional to 188,269.60, 281,937.84 and 104,988.64

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Solution

The fourth proportional to 188,269.60, 281,937.84 and 104,988.64 is: 157,222.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,269.60 : 281,937.84 = 104,988.64 : x
  2. Step 2: Convert to fraction form
    188,269.60/281,937.84 = 104,988.64/x
  3. Step 3: Cross multiply
    188,269.60x = 281,937.84 × 104,988.64
  4. Step 4: Simplify right side
    188,269.60x = 29,600,270,386.14
  5. Step 5: Solve for x
    x = 29,600,270,386.14/188,269.60
  6. Step 6: Final answer
    x = 157,222.78

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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.