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Finding the Fourth Proportional to 221,359.43, 305,474.58 and 125,866.13

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Solution

The fourth proportional to 221,359.43, 305,474.58 and 125,866.13 is: 173,694.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,359.43 : 305,474.58 = 125,866.13 : x
  2. Step 2: Convert to fraction form
    221,359.43/305,474.58 = 125,866.13/x
  3. Step 3: Cross multiply
    221,359.43x = 305,474.58 × 125,866.13
  4. Step 4: Simplify right side
    221,359.43x = 38,448,901,670.60
  5. Step 5: Solve for x
    x = 38,448,901,670.60/221,359.43
  6. Step 6: Final answer
    x = 173,694.44

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.