Home / 279,530.03-419,298.68-79,856.93

Finding the Fourth Proportional to 279,530.03, 419,298.68 and 79,856.93

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Solution

The fourth proportional to 279,530.03, 419,298.68 and 79,856.93 is: 119,786.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,530.03 : 419,298.68 = 79,856.93 : x
  2. Step 2: Convert to fraction form
    279,530.03/419,298.68 = 79,856.93/x
  3. Step 3: Cross multiply
    279,530.03x = 419,298.68 × 79,856.93
  4. Step 4: Simplify right side
    279,530.03x = 33,483,905,337.85
  5. Step 5: Solve for x
    x = 33,483,905,337.85/279,530.03
  6. Step 6: Final answer
    x = 119,786.43

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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.