Home / 222,921.78-307,634.13-120,947.10

Finding the Fourth Proportional to 222,921.78, 307,634.13 and 120,947.10

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Solution

The fourth proportional to 222,921.78, 307,634.13 and 120,947.10 is: 166,908.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,921.78 : 307,634.13 = 120,947.10 : x
  2. Step 2: Convert to fraction form
    222,921.78/307,634.13 = 120,947.10/x
  3. Step 3: Cross multiply
    222,921.78x = 307,634.13 × 120,947.10
  4. Step 4: Simplify right side
    222,921.78x = 37,207,455,884.52
  5. Step 5: Solve for x
    x = 37,207,455,884.52/222,921.78
  6. Step 6: Final answer
    x = 166,908.12

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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.