Home / 219,868.40-329,608.20-131,027.60

Finding the Fourth Proportional to 219,868.40, 329,608.20 and 131,027.60

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Solution

The fourth proportional to 219,868.40, 329,608.20 and 131,027.60 is: 196,425.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,868.40 : 329,608.20 = 131,027.60 : x
  2. Step 2: Convert to fraction form
    219,868.40/329,608.20 = 131,027.60/x
  3. Step 3: Cross multiply
    219,868.40x = 329,608.20 × 131,027.60
  4. Step 4: Simplify right side
    219,868.40x = 43,187,771,386.32
  5. Step 5: Solve for x
    x = 43,187,771,386.32/219,868.40
  6. Step 6: Final answer
    x = 196,425.55

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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.