Home / 279,331.19-419,079.40-161,087.39

Finding the Fourth Proportional to 279,331.19, 419,079.40 and 161,087.39

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Solution

The fourth proportional to 279,331.19, 419,079.40 and 161,087.39 is: 241,678.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,331.19 : 419,079.40 = 161,087.39 : x
  2. Step 2: Convert to fraction form
    279,331.19/419,079.40 = 161,087.39/x
  3. Step 3: Cross multiply
    279,331.19x = 419,079.40 × 161,087.39
  4. Step 4: Simplify right side
    279,331.19x = 67,508,406,748.77
  5. Step 5: Solve for x
    x = 67,508,406,748.77/279,331.19
  6. Step 6: Final answer
    x = 241,678.73

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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.