Home / 221,217.72-305,306.37-125,738.76

Finding the Fourth Proportional to 221,217.72, 305,306.37 and 125,738.76

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Solution

The fourth proportional to 221,217.72, 305,306.37 and 125,738.76 is: 173,534.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,217.72 : 305,306.37 = 125,738.76 : x
  2. Step 2: Convert to fraction form
    221,217.72/305,306.37 = 125,738.76/x
  3. Step 3: Cross multiply
    221,217.72x = 305,306.37 × 125,738.76
  4. Step 4: Simplify right side
    221,217.72x = 38,388,845,528.80
  5. Step 5: Solve for x
    x = 38,388,845,528.80/221,217.72
  6. Step 6: Final answer
    x = 173,534.23

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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.