Home / 305,787.49-421,992.48-169,834.22

Finding the Fourth Proportional to 305,787.49, 421,992.48 and 169,834.22

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Solution

The fourth proportional to 305,787.49, 421,992.48 and 169,834.22 is: 234,374.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,787.49 : 421,992.48 = 169,834.22 : x
  2. Step 2: Convert to fraction form
    305,787.49/421,992.48 = 169,834.22/x
  3. Step 3: Cross multiply
    305,787.49x = 421,992.48 × 169,834.22
  4. Step 4: Simplify right side
    305,787.49x = 71,668,763,796.05
  5. Step 5: Solve for x
    x = 71,668,763,796.05/305,787.49
  6. Step 6: Final answer
    x = 234,374.42

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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.