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Finding the Fourth Proportional to 276,088.40, 414,132.60 and 274,338.80

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Solution

The fourth proportional to 276,088.40, 414,132.60 and 274,338.80 is: 411,508.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,088.40 : 414,132.60 = 274,338.80 : x
  2. Step 2: Convert to fraction form
    276,088.40/414,132.60 = 274,338.80/x
  3. Step 3: Cross multiply
    276,088.40x = 414,132.60 × 274,338.80
  4. Step 4: Simplify right side
    276,088.40x = 113,612,640,524.88
  5. Step 5: Solve for x
    x = 113,612,640,524.88/276,088.40
  6. Step 6: Final answer
    x = 411,508.20

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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.