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Finding the Fourth Proportional to 222,399.50, 306,933.28 and 126,920.54

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Solution

The fourth proportional to 222,399.50, 306,933.28 and 126,920.54 is: 175,162.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,399.50 : 306,933.28 = 126,920.54 : x
  2. Step 2: Convert to fraction form
    222,399.50/306,933.28 = 126,920.54/x
  3. Step 3: Cross multiply
    222,399.50x = 306,933.28 × 126,920.54
  4. Step 4: Simplify right side
    222,399.50x = 38,956,138,091.60
  5. Step 5: Solve for x
    x = 38,956,138,091.60/222,399.50
  6. Step 6: Final answer
    x = 175,162.89

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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.