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Finding the Fourth Proportional to 279,479.62, 419,226.32 and 101,986.62

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Solution

The fourth proportional to 279,479.62, 419,226.32 and 101,986.62 is: 152,982.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,479.62 : 419,226.32 = 101,986.62 : x
  2. Step 2: Convert to fraction form
    279,479.62/419,226.32 = 101,986.62/x
  3. Step 3: Cross multiply
    279,479.62x = 419,226.32 × 101,986.62
  4. Step 4: Simplify right side
    279,479.62x = 42,755,475,391.84
  5. Step 5: Solve for x
    x = 42,755,475,391.84/279,479.62
  6. Step 6: Final answer
    x = 152,982.44

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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.