Home / 219,815.20-329,612.40-107,503.84

Finding the Fourth Proportional to 219,815.20, 329,612.40 and 107,503.84

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Solution

The fourth proportional to 219,815.20, 329,612.40 and 107,503.84 is: 161,201.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,815.20 : 329,612.40 = 107,503.84 : x
  2. Step 2: Convert to fraction form
    219,815.20/329,612.40 = 107,503.84/x
  3. Step 3: Cross multiply
    219,815.20x = 329,612.40 × 107,503.84
  4. Step 4: Simplify right side
    219,815.20x = 35,434,598,711.62
  5. Step 5: Solve for x
    x = 35,434,598,711.62/219,815.20
  6. Step 6: Final answer
    x = 161,201.77

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1.5x scale

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.