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Finding the Fourth Proportional to 276,807.80, 415,211.70 and 226,944.20

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Solution

The fourth proportional to 276,807.80, 415,211.70 and 226,944.20 is: 340,416.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,807.80 : 415,211.70 = 226,944.20 : x
  2. Step 2: Convert to fraction form
    276,807.80/415,211.70 = 226,944.20/x
  3. Step 3: Cross multiply
    276,807.80x = 415,211.70 × 226,944.20
  4. Step 4: Simplify right side
    276,807.80x = 94,229,887,087.14
  5. Step 5: Solve for x
    x = 94,229,887,087.14/276,807.80
  6. Step 6: Final answer
    x = 340,416.30

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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.