Home / 221,844.29-306,138.28-126,364.61

Finding the Fourth Proportional to 221,844.29, 306,138.28 and 126,364.61

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Solution

The fourth proportional to 221,844.29, 306,138.28 and 126,364.61 is: 174,379.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,844.29 : 306,138.28 = 126,364.61 : x
  2. Step 2: Convert to fraction form
    221,844.29/306,138.28 = 126,364.61/x
  3. Step 3: Cross multiply
    221,844.29x = 306,138.28 × 126,364.61
  4. Step 4: Simplify right side
    221,844.29x = 38,685,044,358.27
  5. Step 5: Solve for x
    x = 38,685,044,358.27/221,844.29
  6. Step 6: Final answer
    x = 174,379.27

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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.