Home / 398,826.09-550,376.37-229,061.43

Finding the Fourth Proportional to 398,826.09, 550,376.37 and 229,061.43

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Solution

The fourth proportional to 398,826.09, 550,376.37 and 229,061.43 is: 316,102.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,826.09 : 550,376.37 = 229,061.43 : x
  2. Step 2: Convert to fraction form
    398,826.09/550,376.37 = 229,061.43/x
  3. Step 3: Cross multiply
    398,826.09x = 550,376.37 × 229,061.43
  4. Step 4: Simplify right side
    398,826.09x = 126,069,998,350.41
  5. Step 5: Solve for x
    x = 126,069,998,350.41/398,826.09
  6. Step 6: Final answer
    x = 316,102.69

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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.