Home / 279,668.07-419,506.35-69,306.21

Finding the Fourth Proportional to 279,668.07, 419,506.35 and 69,306.21

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Solution

The fourth proportional to 279,668.07, 419,506.35 and 69,306.21 is: 103,960.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,668.07 : 419,506.35 = 69,306.21 : x
  2. Step 2: Convert to fraction form
    279,668.07/419,506.35 = 69,306.21/x
  3. Step 3: Cross multiply
    279,668.07x = 419,506.35 × 69,306.21
  4. Step 4: Simplify right side
    279,668.07x = 29,074,395,189.43
  5. Step 5: Solve for x
    x = 29,074,395,189.43/279,668.07
  6. Step 6: Final answer
    x = 103,960.37

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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.