Home / 407,161.40-561,882.24-225,900.80

Finding the Fourth Proportional to 407,161.40, 561,882.24 and 225,900.80

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Solution

The fourth proportional to 407,161.40, 561,882.24 and 225,900.80 is: 311,742.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,161.40 : 561,882.24 = 225,900.80 : x
  2. Step 2: Convert to fraction form
    407,161.40/561,882.24 = 225,900.80/x
  3. Step 3: Cross multiply
    407,161.40x = 561,882.24 × 225,900.80
  4. Step 4: Simplify right side
    407,161.40x = 126,929,647,521.79
  5. Step 5: Solve for x
    x = 126,929,647,521.79/407,161.40
  6. Step 6: Final answer
    x = 311,742.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.