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Finding the Fourth Proportional to 222,632.31, 307,231.80 and 120,660.25

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Solution

The fourth proportional to 222,632.31, 307,231.80 and 120,660.25 is: 166,510.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,632.31 : 307,231.80 = 120,660.25 : x
  2. Step 2: Convert to fraction form
    222,632.31/307,231.80 = 120,660.25/x
  3. Step 3: Cross multiply
    222,632.31x = 307,231.80 × 120,660.25
  4. Step 4: Simplify right side
    222,632.31x = 37,070,665,795.95
  5. Step 5: Solve for x
    x = 37,070,665,795.95/222,632.31
  6. Step 6: Final answer
    x = 166,510.72

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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.