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Finding the Fourth Proportional to 222,456.44, 306,990.81 and 120,483.11

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Solution

The fourth proportional to 222,456.44, 306,990.81 and 120,483.11 is: 166,267.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,456.44 : 306,990.81 = 120,483.11 : x
  2. Step 2: Convert to fraction form
    222,456.44/306,990.81 = 120,483.11/x
  3. Step 3: Cross multiply
    222,456.44x = 306,990.81 × 120,483.11
  4. Step 4: Simplify right side
    222,456.44x = 36,987,208,297.70
  5. Step 5: Solve for x
    x = 36,987,208,297.70/222,456.44
  6. Step 6: Final answer
    x = 166,267.19

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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.