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Finding the Fourth Proportional to 306,234.12, 422,622.23 and 170,298.48

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Solution

The fourth proportional to 306,234.12, 422,622.23 and 170,298.48 is: 235,022.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,234.12 : 422,622.23 = 170,298.48 : x
  2. Step 2: Convert to fraction form
    306,234.12/422,622.23 = 170,298.48/x
  3. Step 3: Cross multiply
    306,234.12x = 422,622.23 × 170,298.48
  4. Step 4: Simplify right side
    306,234.12x = 71,971,922,531.72
  5. Step 5: Solve for x
    x = 71,971,922,531.72/306,234.12
  6. Step 6: Final answer
    x = 235,022.55

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