Home / 279,986.45-419,823.70-166,180.46

Finding the Fourth Proportional to 279,986.45, 419,823.70 and 166,180.46

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Solution

The fourth proportional to 279,986.45, 419,823.70 and 166,180.46 is: 249,178.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,986.45 : 419,823.70 = 166,180.46 : x
  2. Step 2: Convert to fraction form
    279,986.45/419,823.70 = 166,180.46/x
  3. Step 3: Cross multiply
    279,986.45x = 419,823.70 × 166,180.46
  4. Step 4: Simplify right side
    279,986.45x = 69,766,493,070.33
  5. Step 5: Solve for x
    x = 69,766,493,070.33/279,986.45
  6. Step 6: Final answer
    x = 249,178.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.