Home / 279,567.77-419,292.11-79,835.13

Finding the Fourth Proportional to 279,567.77, 419,292.11 and 79,835.13

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Solution

The fourth proportional to 279,567.77, 419,292.11 and 79,835.13 is: 119,735.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,567.77 : 419,292.11 = 79,835.13 : x
  2. Step 2: Convert to fraction form
    279,567.77/419,292.11 = 79,835.13/x
  3. Step 3: Cross multiply
    279,567.77x = 419,292.11 × 79,835.13
  4. Step 4: Simplify right side
    279,567.77x = 33,474,240,309.41
  5. Step 5: Solve for x
    x = 33,474,240,309.41/279,567.77
  6. Step 6: Final answer
    x = 119,735.69

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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.