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Finding the Fourth Proportional to 276,887.70, 415,331.55 and 227,680.20

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Solution

The fourth proportional to 276,887.70, 415,331.55 and 227,680.20 is: 341,520.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,887.70 : 415,331.55 = 227,680.20 : x
  2. Step 2: Convert to fraction form
    276,887.70/415,331.55 = 227,680.20/x
  3. Step 3: Cross multiply
    276,887.70x = 415,331.55 × 227,680.20
  4. Step 4: Simplify right side
    276,887.70x = 94,562,770,370.31
  5. Step 5: Solve for x
    x = 94,562,770,370.31/276,887.70
  6. Step 6: Final answer
    x = 341,520.30

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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.