Home / 328,199.28-449,961.35-322,220.87

Finding the Fourth Proportional to 328,199.28, 449,961.35 and 322,220.87

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Solution

The fourth proportional to 328,199.28, 449,961.35 and 322,220.87 is: 441,764.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,199.28 : 449,961.35 = 322,220.87 : x
  2. Step 2: Convert to fraction form
    328,199.28/449,961.35 = 322,220.87/x
  3. Step 3: Cross multiply
    328,199.28x = 449,961.35 × 322,220.87
  4. Step 4: Simplify right side
    328,199.28x = 144,986,933,802.46
  5. Step 5: Solve for x
    x = 144,986,933,802.46/328,199.28
  6. Step 6: Final answer
    x = 441,764.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.