Home / 279,755.13-419,998.53-166,110.45

Finding the Fourth Proportional to 279,755.13, 419,998.53 and 166,110.45

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Solution

The fourth proportional to 279,755.13, 419,998.53 and 166,110.45 is: 249,382.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,755.13 : 419,998.53 = 166,110.45 : x
  2. Step 2: Convert to fraction form
    279,755.13/419,998.53 = 166,110.45/x
  3. Step 3: Cross multiply
    279,755.13x = 419,998.53 × 166,110.45
  4. Step 4: Simplify right side
    279,755.13x = 69,766,144,817.64
  5. Step 5: Solve for x
    x = 69,766,144,817.64/279,755.13
  6. Step 6: Final answer
    x = 249,382.90

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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.