Home / 220,855.24-330,864.90-130,627.72

Finding the Fourth Proportional to 220,855.24, 330,864.90 and 130,627.72

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Solution

The fourth proportional to 220,855.24, 330,864.90 and 130,627.72 is: 195,694.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,855.24 : 330,864.90 = 130,627.72 : x
  2. Step 2: Convert to fraction form
    220,855.24/330,864.90 = 130,627.72/x
  3. Step 3: Cross multiply
    220,855.24x = 330,864.90 × 130,627.72
  4. Step 4: Simplify right side
    220,855.24x = 43,220,127,515.03
  5. Step 5: Solve for x
    x = 43,220,127,515.03/220,855.24
  6. Step 6: Final answer
    x = 195,694.37

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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.