Home / 221,845.29-306,139.66-126,365.61

Finding the Fourth Proportional to 221,845.29, 306,139.66 and 126,365.61

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Solution

The fourth proportional to 221,845.29, 306,139.66 and 126,365.61 is: 174,380.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,845.29 : 306,139.66 = 126,365.61 : x
  2. Step 2: Convert to fraction form
    221,845.29/306,139.66 = 126,365.61/x
  3. Step 3: Cross multiply
    221,845.29x = 306,139.66 × 126,365.61
  4. Step 4: Simplify right side
    221,845.29x = 38,685,524,881.09
  5. Step 5: Solve for x
    x = 38,685,524,881.09/221,845.29
  6. Step 6: Final answer
    x = 174,380.65

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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.