Home / 423,549.69-635,138.03-198,973.95

Finding the Fourth Proportional to 423,549.69, 635,138.03 and 198,973.95

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Solution

The fourth proportional to 423,549.69, 635,138.03 and 198,973.95 is: 298,373.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,549.69 : 635,138.03 = 198,973.95 : x
  2. Step 2: Convert to fraction form
    423,549.69/635,138.03 = 198,973.95/x
  3. Step 3: Cross multiply
    423,549.69x = 635,138.03 × 198,973.95
  4. Step 4: Simplify right side
    423,549.69x = 126,375,923,121.75
  5. Step 5: Solve for x
    x = 126,375,923,121.75/423,549.69
  6. Step 6: Final answer
    x = 298,373.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.