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Finding the Fourth Proportional to 221,489.97, 332,087.31 and 107,607.40

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Solution

The fourth proportional to 221,489.97, 332,087.31 and 107,607.40 is: 161,339.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,489.97 : 332,087.31 = 107,607.40 : x
  2. Step 2: Convert to fraction form
    221,489.97/332,087.31 = 107,607.40/x
  3. Step 3: Cross multiply
    221,489.97x = 332,087.31 × 107,607.40
  4. Step 4: Simplify right side
    221,489.97x = 35,735,052,002.09
  5. Step 5: Solve for x
    x = 35,735,052,002.09/221,489.97
  6. Step 6: Final answer
    x = 161,339.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.