Home / 279,523.20-419,340.16-79,845.32

Finding the Fourth Proportional to 279,523.20, 419,340.16 and 79,845.32

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Solution

The fourth proportional to 279,523.20, 419,340.16 and 79,845.32 is: 119,783.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,523.20 : 419,340.16 = 79,845.32 : x
  2. Step 2: Convert to fraction form
    279,523.20/419,340.16 = 79,845.32/x
  3. Step 3: Cross multiply
    279,523.20x = 419,340.16 × 79,845.32
  4. Step 4: Simplify right side
    279,523.20x = 33,482,349,457.38
  5. Step 5: Solve for x
    x = 33,482,349,457.38/279,523.20
  6. Step 6: Final answer
    x = 119,783.79

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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.