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Finding the Fourth Proportional to 222,690.27, 306,900.42 and 158,162.31

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Solution

The fourth proportional to 222,690.27, 306,900.42 and 158,162.31 is: 217,971.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,690.27 : 306,900.42 = 158,162.31 : x
  2. Step 2: Convert to fraction form
    222,690.27/306,900.42 = 158,162.31/x
  3. Step 3: Cross multiply
    222,690.27x = 306,900.42 × 158,162.31
  4. Step 4: Simplify right side
    222,690.27x = 48,540,079,367.17
  5. Step 5: Solve for x
    x = 48,540,079,367.17/222,690.27
  6. Step 6: Final answer
    x = 217,971.26

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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.