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Finding the Fourth Proportional to 221,059.77, 305,046.07 and 125,548

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Solution

The fourth proportional to 221,059.77, 305,046.07 and 125,548 is: 173,246.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,059.77 : 305,046.07 = 125,548 : x
  2. Step 2: Convert to fraction form
    221,059.77/305,046.07 = 125,548/x
  3. Step 3: Cross multiply
    221,059.77x = 305,046.07 × 125,548
  4. Step 4: Simplify right side
    221,059.77x = 38,297,923,996.36
  5. Step 5: Solve for x
    x = 38,297,923,996.36/221,059.77
  6. Step 6: Final answer
    x = 173,246.92

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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.