Home / 279,418.96-419,132.28-79,739.24

Finding the Fourth Proportional to 279,418.96, 419,132.28 and 79,739.24

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Solution

The fourth proportional to 279,418.96, 419,132.28 and 79,739.24 is: 119,609.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,418.96 : 419,132.28 = 79,739.24 : x
  2. Step 2: Convert to fraction form
    279,418.96/419,132.28 = 79,739.24/x
  3. Step 3: Cross multiply
    279,418.96x = 419,132.28 × 79,739.24
  4. Step 4: Simplify right side
    279,418.96x = 33,421,289,466.67
  5. Step 5: Solve for x
    x = 33,421,289,466.67/279,418.96
  6. Step 6: Final answer
    x = 119,609.96

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1.5x scale

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.