Home / 279,660.89-385,921.11-170,947.23

Finding the Fourth Proportional to 279,660.89, 385,921.11 and 170,947.23

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Solution

The fourth proportional to 279,660.89, 385,921.11 and 170,947.23 is: 235,900.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,660.89 : 385,921.11 = 170,947.23 : x
  2. Step 2: Convert to fraction form
    279,660.89/385,921.11 = 170,947.23/x
  3. Step 3: Cross multiply
    279,660.89x = 385,921.11 × 170,947.23
  4. Step 4: Simplify right side
    279,660.89x = 65,972,144,753.03
  5. Step 5: Solve for x
    x = 65,972,144,753.03/279,660.89
  6. Step 6: Final answer
    x = 235,900.50

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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.