Home / 221,815.69-306,105.66-126,331.27

Finding the Fourth Proportional to 221,815.69, 306,105.66 and 126,331.27

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Solution

The fourth proportional to 221,815.69, 306,105.66 and 126,331.27 is: 174,337.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,815.69 : 306,105.66 = 126,331.27 : x
  2. Step 2: Convert to fraction form
    221,815.69/306,105.66 = 126,331.27/x
  3. Step 3: Cross multiply
    221,815.69x = 306,105.66 × 126,331.27
  4. Step 4: Simplify right side
    221,815.69x = 38,670,716,016.72
  5. Step 5: Solve for x
    x = 38,670,716,016.72/221,815.69
  6. Step 6: Final answer
    x = 174,337.16

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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.