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Finding the Fourth Proportional to 245,263.26, 338,404.17 and 143,230.80

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Solution

The fourth proportional to 245,263.26, 338,404.17 and 143,230.80 is: 197,623.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,263.26 : 338,404.17 = 143,230.80 : x
  2. Step 2: Convert to fraction form
    245,263.26/338,404.17 = 143,230.80/x
  3. Step 3: Cross multiply
    245,263.26x = 338,404.17 × 143,230.80
  4. Step 4: Simplify right side
    245,263.26x = 48,469,899,992.44
  5. Step 5: Solve for x
    x = 48,469,899,992.44/245,263.26
  6. Step 6: Final answer
    x = 197,623.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.