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Finding the Fourth Proportional to 221,441.19, 305,605.76 and 125,942.19

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Solution

The fourth proportional to 221,441.19, 305,605.76 and 125,942.19 is: 173,809.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,441.19 : 305,605.76 = 125,942.19 : x
  2. Step 2: Convert to fraction form
    221,441.19/305,605.76 = 125,942.19/x
  3. Step 3: Cross multiply
    221,441.19x = 305,605.76 × 125,942.19
  4. Step 4: Simplify right side
    221,441.19x = 38,488,658,061.30
  5. Step 5: Solve for x
    x = 38,488,658,061.30/221,441.19
  6. Step 6: Final answer
    x = 173,809.84

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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.