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Finding the Fourth Proportional to 222,321.60, 306,842.56 and 131,728.56

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Solution

The fourth proportional to 222,321.60, 306,842.56 and 131,728.56 is: 181,808.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,321.60 : 306,842.56 = 131,728.56 : x
  2. Step 2: Convert to fraction form
    222,321.60/306,842.56 = 131,728.56/x
  3. Step 3: Cross multiply
    222,321.60x = 306,842.56 × 131,728.56
  4. Step 4: Simplify right side
    222,321.60x = 40,419,928,575.51
  5. Step 5: Solve for x
    x = 40,419,928,575.51/222,321.60
  6. Step 6: Final answer
    x = 181,808.37

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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.