Home / 220,517.80-329,999.10-153,644.20

Finding the Fourth Proportional to 220,517.80, 329,999.10 and 153,644.20

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Solution

The fourth proportional to 220,517.80, 329,999.10 and 153,644.20 is: 229,924.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,517.80 : 329,999.10 = 153,644.20 : x
  2. Step 2: Convert to fraction form
    220,517.80/329,999.10 = 153,644.20/x
  3. Step 3: Cross multiply
    220,517.80x = 329,999.10 × 153,644.20
  4. Step 4: Simplify right side
    220,517.80x = 50,702,447,720.22
  5. Step 5: Solve for x
    x = 50,702,447,720.22/220,517.80
  6. Step 6: Final answer
    x = 229,924.51

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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.