Home / 220,171.60-329,601.30-131,379.40

Finding the Fourth Proportional to 220,171.60, 329,601.30 and 131,379.40

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Solution

The fourth proportional to 220,171.60, 329,601.30 and 131,379.40 is: 196,677.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,171.60 : 329,601.30 = 131,379.40 : x
  2. Step 2: Convert to fraction form
    220,171.60/329,601.30 = 131,379.40/x
  3. Step 3: Cross multiply
    220,171.60x = 329,601.30 × 131,379.40
  4. Step 4: Simplify right side
    220,171.60x = 43,302,821,033.22
  5. Step 5: Solve for x
    x = 43,302,821,033.22/220,171.60
  6. Step 6: Final answer
    x = 196,677.60

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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.