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Finding the Fourth Proportional to 221,422.52, 332,186.47 and 71,662.81

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Solution

The fourth proportional to 221,422.52, 332,186.47 and 71,662.81 is: 107,511.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,422.52 : 332,186.47 = 71,662.81 : x
  2. Step 2: Convert to fraction form
    221,422.52/332,186.47 = 71,662.81/x
  3. Step 3: Cross multiply
    221,422.52x = 332,186.47 × 71,662.81
  4. Step 4: Simplify right side
    221,422.52x = 23,805,414,654.81
  5. Step 5: Solve for x
    x = 23,805,414,654.81/221,422.52
  6. Step 6: Final answer
    x = 107,511.26

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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.