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Finding the Fourth Proportional to 279,438.82, 419,052.49 and 119,508.10

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Solution

The fourth proportional to 279,438.82, 419,052.49 and 119,508.10 is: 179,216.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,438.82 : 419,052.49 = 119,508.10 : x
  2. Step 2: Convert to fraction form
    279,438.82/419,052.49 = 119,508.10/x
  3. Step 3: Cross multiply
    279,438.82x = 419,052.49 × 119,508.10
  4. Step 4: Simplify right side
    279,438.82x = 50,080,166,880.17
  5. Step 5: Solve for x
    x = 50,080,166,880.17/279,438.82
  6. Step 6: Final answer
    x = 179,216.93

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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.