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Finding the Fourth Proportional to 306,236.85, 422,595.79 and 168,414.59

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Solution

The fourth proportional to 306,236.85, 422,595.79 and 168,414.59 is: 232,406.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,236.85 : 422,595.79 = 168,414.59 : x
  2. Step 2: Convert to fraction form
    306,236.85/422,595.79 = 168,414.59/x
  3. Step 3: Cross multiply
    306,236.85x = 422,595.79 × 168,414.59
  4. Step 4: Simplify right side
    306,236.85x = 71,171,296,708.58
  5. Step 5: Solve for x
    x = 71,171,296,708.58/306,236.85
  6. Step 6: Final answer
    x = 232,406.05

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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.