Home / 214,764.38-321,903.50-109,360.70

Finding the Fourth Proportional to 214,764.38, 321,903.50 and 109,360.70

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Solution

The fourth proportional to 214,764.38, 321,903.50 and 109,360.70 is: 163,917.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,764.38 : 321,903.50 = 109,360.70 : x
  2. Step 2: Convert to fraction form
    214,764.38/321,903.50 = 109,360.70/x
  3. Step 3: Cross multiply
    214,764.38x = 321,903.50 × 109,360.70
  4. Step 4: Simplify right side
    214,764.38x = 35,203,592,092.45
  5. Step 5: Solve for x
    x = 35,203,592,092.45/214,764.38
  6. Step 6: Final answer
    x = 163,917.28

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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.