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Finding the Fourth Proportional to 222,395.61, 306,906.51 and 120,422.28

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Solution

The fourth proportional to 222,395.61, 306,906.51 and 120,422.28 is: 166,183.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,395.61 : 306,906.51 = 120,422.28 : x
  2. Step 2: Convert to fraction form
    222,395.61/306,906.51 = 120,422.28/x
  3. Step 3: Cross multiply
    222,395.61x = 306,906.51 × 120,422.28
  4. Step 4: Simplify right side
    222,395.61x = 36,958,381,681.04
  5. Step 5: Solve for x
    x = 36,958,381,681.04/222,395.61
  6. Step 6: Final answer
    x = 166,183.05

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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.