Home / 219,165.20-328,650.60-100,872.80

Finding the Fourth Proportional to 219,165.20, 328,650.60 and 100,872.80

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Solution

The fourth proportional to 219,165.20, 328,650.60 and 100,872.80 is: 151,264.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,165.20 : 328,650.60 = 100,872.80 : x
  2. Step 2: Convert to fraction form
    219,165.20/328,650.60 = 100,872.80/x
  3. Step 3: Cross multiply
    219,165.20x = 328,650.60 × 100,872.80
  4. Step 4: Simplify right side
    219,165.20x = 33,151,906,243.68
  5. Step 5: Solve for x
    x = 33,151,906,243.68/219,165.20
  6. Step 6: Final answer
    x = 151,264.46

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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.