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Finding the Fourth Proportional to 276,830.38, 415,245.62 and 158,418

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Solution

The fourth proportional to 276,830.38, 415,245.62 and 158,418 is: 237,627.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,830.38 : 415,245.62 = 158,418 : x
  2. Step 2: Convert to fraction form
    276,830.38/415,245.62 = 158,418/x
  3. Step 3: Cross multiply
    276,830.38x = 415,245.62 × 158,418
  4. Step 4: Simplify right side
    276,830.38x = 65,782,380,629.16
  5. Step 5: Solve for x
    x = 65,782,380,629.16/276,830.38
  6. Step 6: Final answer
    x = 237,627.03

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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.