Home / 220,561.56-304,277.34-135,628.44

Finding the Fourth Proportional to 220,561.56, 304,277.34 and 135,628.44

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Solution

The fourth proportional to 220,561.56, 304,277.34 and 135,628.44 is: 187,107.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,561.56 : 304,277.34 = 135,628.44 : x
  2. Step 2: Convert to fraction form
    220,561.56/304,277.34 = 135,628.44/x
  3. Step 3: Cross multiply
    220,561.56x = 304,277.34 × 135,628.44
  4. Step 4: Simplify right side
    220,561.56x = 41,268,660,951.55
  5. Step 5: Solve for x
    x = 41,268,660,951.55/220,561.56
  6. Step 6: Final answer
    x = 187,107.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.