Home / 269,860.75-372,061.69-221,283.79

Finding the Fourth Proportional to 269,860.75, 372,061.69 and 221,283.79

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Solution

The fourth proportional to 269,860.75, 372,061.69 and 221,283.79 is: 305,087.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,860.75 : 372,061.69 = 221,283.79 : x
  2. Step 2: Convert to fraction form
    269,860.75/372,061.69 = 221,283.79/x
  3. Step 3: Cross multiply
    269,860.75x = 372,061.69 × 221,283.79
  4. Step 4: Simplify right side
    269,860.75x = 82,331,220,877.01
  5. Step 5: Solve for x
    x = 82,331,220,877.01/269,860.75
  6. Step 6: Final answer
    x = 305,087.79

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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.