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Finding the Fourth Proportional to 222,302.11, 306,806.12 and 126,786.91

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Solution

The fourth proportional to 222,302.11, 306,806.12 and 126,786.91 is: 174,982.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,302.11 : 306,806.12 = 126,786.91 : x
  2. Step 2: Convert to fraction form
    222,302.11/306,806.12 = 126,786.91/x
  3. Step 3: Cross multiply
    222,302.11x = 306,806.12 × 126,786.91
  4. Step 4: Simplify right side
    222,302.11x = 38,898,999,923.89
  5. Step 5: Solve for x
    x = 38,898,999,923.89/222,302.11
  6. Step 6: Final answer
    x = 174,982.59

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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.