Home / 221,717.28-332,489.60-71,921.32

Finding the Fourth Proportional to 221,717.28, 332,489.60 and 71,921.32

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Solution

The fourth proportional to 221,717.28, 332,489.60 and 71,921.32 is: 107,853.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,717.28 : 332,489.60 = 71,921.32 : x
  2. Step 2: Convert to fraction form
    221,717.28/332,489.60 = 71,921.32/x
  3. Step 3: Cross multiply
    221,717.28x = 332,489.60 × 71,921.32
  4. Step 4: Simplify right side
    221,717.28x = 23,913,090,918.27
  5. Step 5: Solve for x
    x = 23,913,090,918.27/221,717.28
  6. Step 6: Final answer
    x = 107,853.98

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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.