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Finding the Fourth Proportional to 306,059.79, 422,363.38 and 170,093.32

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Solution

The fourth proportional to 306,059.79, 422,363.38 and 170,093.32 is: 234,729.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,059.79 : 422,363.38 = 170,093.32 : x
  2. Step 2: Convert to fraction form
    306,059.79/422,363.38 = 170,093.32/x
  3. Step 3: Cross multiply
    306,059.79x = 422,363.38 × 170,093.32
  4. Step 4: Simplify right side
    306,059.79x = 71,841,189,550.62
  5. Step 5: Solve for x
    x = 71,841,189,550.62/306,059.79
  6. Step 6: Final answer
    x = 234,729.26

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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.