Home / 423,733.10-635,291.48-198,977.72

Finding the Fourth Proportional to 423,733.10, 635,291.48 and 198,977.72

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Solution

The fourth proportional to 423,733.10, 635,291.48 and 198,977.72 is: 298,321.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,733.10 : 635,291.48 = 198,977.72 : x
  2. Step 2: Convert to fraction form
    423,733.10/635,291.48 = 198,977.72/x
  3. Step 3: Cross multiply
    423,733.10x = 635,291.48 × 198,977.72
  4. Step 4: Simplify right side
    423,733.10x = 126,408,847,546.81
  5. Step 5: Solve for x
    x = 126,408,847,546.81/423,733.10
  6. Step 6: Final answer
    x = 298,321.87

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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.