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Finding the Fourth Proportional to 276,809.80, 415,214.70 and 226,946.20

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Solution

The fourth proportional to 276,809.80, 415,214.70 and 226,946.20 is: 340,419.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,809.80 : 415,214.70 = 226,946.20 : x
  2. Step 2: Convert to fraction form
    276,809.80/415,214.70 = 226,946.20/x
  3. Step 3: Cross multiply
    276,809.80x = 415,214.70 × 226,946.20
  4. Step 4: Simplify right side
    276,809.80x = 94,231,398,349.14
  5. Step 5: Solve for x
    x = 94,231,398,349.14/276,809.80
  6. Step 6: Final answer
    x = 340,419.30

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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.