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Finding the Fourth Proportional to 222,243.44, 306,693.78 and 120,266.72

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Solution

The fourth proportional to 222,243.44, 306,693.78 and 120,266.72 is: 165,966.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,243.44 : 306,693.78 = 120,266.72 : x
  2. Step 2: Convert to fraction form
    222,243.44/306,693.78 = 120,266.72/x
  3. Step 3: Cross multiply
    222,243.44x = 306,693.78 × 120,266.72
  4. Step 4: Simplify right side
    222,243.44x = 36,885,054,965.00
  5. Step 5: Solve for x
    x = 36,885,054,965.00/222,243.44
  6. Step 6: Final answer
    x = 165,966.90

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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.