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Finding the Fourth Proportional to 222,330.79, 306,814.41 and 120,353.64

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Solution

The fourth proportional to 222,330.79, 306,814.41 and 120,353.64 is: 166,086.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,330.79 : 306,814.41 = 120,353.64 : x
  2. Step 2: Convert to fraction form
    222,330.79/306,814.41 = 120,353.64/x
  3. Step 3: Cross multiply
    222,330.79x = 306,814.41 × 120,353.64
  4. Step 4: Simplify right side
    222,330.79x = 36,926,231,047.95
  5. Step 5: Solve for x
    x = 36,926,231,047.95/222,330.79
  6. Step 6: Final answer
    x = 166,086.90

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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.