Home / 222,919.78-307,631.37-120,945.10

Finding the Fourth Proportional to 222,919.78, 307,631.37 and 120,945.10

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Solution

The fourth proportional to 222,919.78, 307,631.37 and 120,945.10 is: 166,905.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,919.78 : 307,631.37 = 120,945.10 : x
  2. Step 2: Convert to fraction form
    222,919.78/307,631.37 = 120,945.10/x
  3. Step 3: Cross multiply
    222,919.78x = 307,631.37 × 120,945.10
  4. Step 4: Simplify right side
    222,919.78x = 37,206,506,807.79
  5. Step 5: Solve for x
    x = 37,206,506,807.79/222,919.78
  6. Step 6: Final answer
    x = 166,905.36

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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.