Home / 219,914.70-329,872.05-131,268.30

Finding the Fourth Proportional to 219,914.70, 329,872.05 and 131,268.30

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Solution

The fourth proportional to 219,914.70, 329,872.05 and 131,268.30 is: 196,902.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,914.70 : 329,872.05 = 131,268.30 : x
  2. Step 2: Convert to fraction form
    219,914.70/329,872.05 = 131,268.30/x
  3. Step 3: Cross multiply
    219,914.70x = 329,872.05 × 131,268.30
  4. Step 4: Simplify right side
    219,914.70x = 43,301,743,221.02
  5. Step 5: Solve for x
    x = 43,301,743,221.02/219,914.70
  6. Step 6: Final answer
    x = 196,902.45

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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.