Home / 219,485.20-329,227.80-131,011.60

Finding the Fourth Proportional to 219,485.20, 329,227.80 and 131,011.60

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Solution

The fourth proportional to 219,485.20, 329,227.80 and 131,011.60 is: 196,517.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,485.20 : 329,227.80 = 131,011.60 : x
  2. Step 2: Convert to fraction form
    219,485.20/329,227.80 = 131,011.60/x
  3. Step 3: Cross multiply
    219,485.20x = 329,227.80 × 131,011.60
  4. Step 4: Simplify right side
    219,485.20x = 43,132,660,842.48
  5. Step 5: Solve for x
    x = 43,132,660,842.48/219,485.20
  6. Step 6: Final answer
    x = 196,517.40

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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.