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Finding the Fourth Proportional to 221,725.88, 332,621.63 and 81,473.57

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Solution

The fourth proportional to 221,725.88, 332,621.63 and 81,473.57 is: 122,222.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,725.88 : 332,621.63 = 81,473.57 : x
  2. Step 2: Convert to fraction form
    221,725.88/332,621.63 = 81,473.57/x
  3. Step 3: Cross multiply
    221,725.88x = 332,621.63 × 81,473.57
  4. Step 4: Simplify right side
    221,725.88x = 27,099,871,655.32
  5. Step 5: Solve for x
    x = 27,099,871,655.32/221,725.88
  6. Step 6: Final answer
    x = 122,222.41

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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.