Home / 220,544.40-330,622.20-131,703.60

Finding the Fourth Proportional to 220,544.40, 330,622.20 and 131,703.60

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Solution

The fourth proportional to 220,544.40, 330,622.20 and 131,703.60 is: 197,439.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,544.40 : 330,622.20 = 131,703.60 : x
  2. Step 2: Convert to fraction form
    220,544.40/330,622.20 = 131,703.60/x
  3. Step 3: Cross multiply
    220,544.40x = 330,622.20 × 131,703.60
  4. Step 4: Simplify right side
    220,544.40x = 43,544,133,979.92
  5. Step 5: Solve for x
    x = 43,544,133,979.92/220,544.40
  6. Step 6: Final answer
    x = 197,439.31

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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.