Home / 221,015.57-331,520.93-132,293.84

Finding the Fourth Proportional to 221,015.57, 331,520.93 and 132,293.84

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Solution

The fourth proportional to 221,015.57, 331,520.93 and 132,293.84 is: 198,439.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,015.57 : 331,520.93 = 132,293.84 : x
  2. Step 2: Convert to fraction form
    221,015.57/331,520.93 = 132,293.84/x
  3. Step 3: Cross multiply
    221,015.57x = 331,520.93 × 132,293.84
  4. Step 4: Simplify right side
    221,015.57x = 43,858,176,208.60
  5. Step 5: Solve for x
    x = 43,858,176,208.60/221,015.57
  6. Step 6: Final answer
    x = 198,439.31

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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.