Home / 398,882.07-550,551.74-229,214.61

Finding the Fourth Proportional to 398,882.07, 550,551.74 and 229,214.61

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Solution

The fourth proportional to 398,882.07, 550,551.74 and 229,214.61 is: 316,370.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,882.07 : 550,551.74 = 229,214.61 : x
  2. Step 2: Convert to fraction form
    398,882.07/550,551.74 = 229,214.61/x
  3. Step 3: Cross multiply
    398,882.07x = 550,551.74 × 229,214.61
  4. Step 4: Simplify right side
    398,882.07x = 126,194,501,222.85
  5. Step 5: Solve for x
    x = 126,194,501,222.85/398,882.07
  6. Step 6: Final answer
    x = 316,370.45

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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.