Home / 268,919.38-403,379.34-69,240.21

Finding the Fourth Proportional to 268,919.38, 403,379.34 and 69,240.21

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Solution

The fourth proportional to 268,919.38, 403,379.34 and 69,240.21 is: 103,860.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,919.38 : 403,379.34 = 69,240.21 : x
  2. Step 2: Convert to fraction form
    268,919.38/403,379.34 = 69,240.21/x
  3. Step 3: Cross multiply
    268,919.38x = 403,379.34 × 69,240.21
  4. Step 4: Simplify right side
    268,919.38x = 27,930,070,211.26
  5. Step 5: Solve for x
    x = 27,930,070,211.26/268,919.38
  6. Step 6: Final answer
    x = 103,860.38

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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.