Home / 219,070.20-328,508.10-100,680.60

Finding the Fourth Proportional to 219,070.20, 328,508.10 and 100,680.60

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Solution

The fourth proportional to 219,070.20, 328,508.10 and 100,680.60 is: 150,976.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,070.20 : 328,508.10 = 100,680.60 : x
  2. Step 2: Convert to fraction form
    219,070.20/328,508.10 = 100,680.60/x
  3. Step 3: Cross multiply
    219,070.20x = 328,508.10 × 100,680.60
  4. Step 4: Simplify right side
    219,070.20x = 33,074,392,612.86
  5. Step 5: Solve for x
    x = 33,074,392,612.86/219,070.20
  6. Step 6: Final answer
    x = 150,976.23

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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.