Home / 407,143.32-561,861.18-225,867.06

Finding the Fourth Proportional to 407,143.32, 561,861.18 and 225,867.06

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Solution

The fourth proportional to 407,143.32, 561,861.18 and 225,867.06 is: 311,698.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,143.32 : 561,861.18 = 225,867.06 : x
  2. Step 2: Convert to fraction form
    407,143.32/561,861.18 = 225,867.06/x
  3. Step 3: Cross multiply
    407,143.32x = 561,861.18 × 225,867.06
  4. Step 4: Simplify right side
    407,143.32x = 126,905,932,854.73
  5. Step 5: Solve for x
    x = 126,905,932,854.73/407,143.32
  6. Step 6: Final answer
    x = 311,698.43

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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.