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Finding the Fourth Proportional to 279,412.90, 419,115.22 and 69,050.84

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Solution

The fourth proportional to 279,412.90, 419,115.22 and 69,050.84 is: 103,575.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,412.90 : 419,115.22 = 69,050.84 : x
  2. Step 2: Convert to fraction form
    279,412.90/419,115.22 = 69,050.84/x
  3. Step 3: Cross multiply
    279,412.90x = 419,115.22 × 69,050.84
  4. Step 4: Simplify right side
    279,412.90x = 28,940,255,729.58
  5. Step 5: Solve for x
    x = 28,940,255,729.58/279,412.90
  6. Step 6: Final answer
    x = 103,575.23

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