Home / 226,145.40-339,218.10-221,998.20

Finding the Fourth Proportional to 226,145.40, 339,218.10 and 221,998.20

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Solution

The fourth proportional to 226,145.40, 339,218.10 and 221,998.20 is: 332,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,145.40 : 339,218.10 = 221,998.20 : x
  2. Step 2: Convert to fraction form
    226,145.40/339,218.10 = 221,998.20/x
  3. Step 3: Cross multiply
    226,145.40x = 339,218.10 × 221,998.20
  4. Step 4: Simplify right side
    226,145.40x = 75,305,807,607.42
  5. Step 5: Solve for x
    x = 75,305,807,607.42/226,145.40
  6. Step 6: Final answer
    x = 332,997.30

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Double scale
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Similar ratio
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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.