Home / 275,141.24-379,717.44-161,986.40

Finding the Fourth Proportional to 275,141.24, 379,717.44 and 161,986.40

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Solution

The fourth proportional to 275,141.24, 379,717.44 and 161,986.40 is: 223,554.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,141.24 : 379,717.44 = 161,986.40 : x
  2. Step 2: Convert to fraction form
    275,141.24/379,717.44 = 161,986.40/x
  3. Step 3: Cross multiply
    275,141.24x = 379,717.44 × 161,986.40
  4. Step 4: Simplify right side
    275,141.24x = 61,509,061,122.82
  5. Step 5: Solve for x
    x = 61,509,061,122.82/275,141.24
  6. Step 6: Final answer
    x = 223,554.50

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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.