Home / 221,727.06-305,983.64-126,233.78

Finding the Fourth Proportional to 221,727.06, 305,983.64 and 126,233.78

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Solution

The fourth proportional to 221,727.06, 305,983.64 and 126,233.78 is: 174,202.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,727.06 : 305,983.64 = 126,233.78 : x
  2. Step 2: Convert to fraction form
    221,727.06/305,983.64 = 126,233.78/x
  3. Step 3: Cross multiply
    221,727.06x = 305,983.64 × 126,233.78
  4. Step 4: Simplify right side
    221,727.06x = 38,625,470,281.03
  5. Step 5: Solve for x
    x = 38,625,470,281.03/221,727.06
  6. Step 6: Final answer
    x = 174,202.78

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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.