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Finding the Fourth Proportional to 268,680.96, 370,766.16 and 161,229.60

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Solution

The fourth proportional to 268,680.96, 370,766.16 and 161,229.60 is: 222,488.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,680.96 : 370,766.16 = 161,229.60 : x
  2. Step 2: Convert to fraction form
    268,680.96/370,766.16 = 161,229.60/x
  3. Step 3: Cross multiply
    268,680.96x = 370,766.16 × 161,229.60
  4. Step 4: Simplify right side
    268,680.96x = 59,778,479,670.34
  5. Step 5: Solve for x
    x = 59,778,479,670.34/268,680.96
  6. Step 6: Final answer
    x = 222,488.71

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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.