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Finding the Fourth Proportional to 306,550.62, 422,800.17 and 199,155.24

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Solution

The fourth proportional to 306,550.62, 422,800.17 and 199,155.24 is: 274,678.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,550.62 : 422,800.17 = 199,155.24 : x
  2. Step 2: Convert to fraction form
    306,550.62/422,800.17 = 199,155.24/x
  3. Step 3: Cross multiply
    306,550.62x = 422,800.17 × 199,155.24
  4. Step 4: Simplify right side
    306,550.62x = 84,202,869,328.39
  5. Step 5: Solve for x
    x = 84,202,869,328.39/306,550.62
  6. Step 6: Final answer
    x = 274,678.52

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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.