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Finding the Fourth Proportional to 222,768.95, 307,321.53 and 132,128.73

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Solution

The fourth proportional to 222,768.95, 307,321.53 and 132,128.73 is: 182,278.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,768.95 : 307,321.53 = 132,128.73 : x
  2. Step 2: Convert to fraction form
    222,768.95/307,321.53 = 132,128.73/x
  3. Step 3: Cross multiply
    222,768.95x = 307,321.53 × 132,128.73
  4. Step 4: Simplify right side
    222,768.95x = 40,606,002,965.07
  5. Step 5: Solve for x
    x = 40,606,002,965.07/222,768.95
  6. Step 6: Final answer
    x = 182,278.56

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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.