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Finding the Fourth Proportional to 192,483.78, 288,774.87 and 80,126.64

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Solution

The fourth proportional to 192,483.78, 288,774.87 and 80,126.64 is: 120,210.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,483.78 : 288,774.87 = 80,126.64 : x
  2. Step 2: Convert to fraction form
    192,483.78/288,774.87 = 80,126.64/x
  3. Step 3: Cross multiply
    192,483.78x = 288,774.87 × 80,126.64
  4. Step 4: Simplify right side
    192,483.78x = 23,138,560,049.54
  5. Step 5: Solve for x
    x = 23,138,560,049.54/192,483.78
  6. Step 6: Final answer
    x = 120,210.44

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1.5x scale

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.