Home / 398,947.56-550,568.70-229,192.62

Finding the Fourth Proportional to 398,947.56, 550,568.70 and 229,192.62

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Solution

The fourth proportional to 398,947.56, 550,568.70 and 229,192.62 is: 316,297.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,947.56 : 550,568.70 = 229,192.62 : x
  2. Step 2: Convert to fraction form
    398,947.56/550,568.70 = 229,192.62/x
  3. Step 3: Cross multiply
    398,947.56x = 550,568.70 × 229,192.62
  4. Step 4: Simplify right side
    398,947.56x = 126,186,282,842.99
  5. Step 5: Solve for x
    x = 126,186,282,842.99/398,947.56
  6. Step 6: Final answer
    x = 316,297.92

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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.