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Finding the Fourth Proportional to 220,221.52, 303,927.01 and 123,441.79

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Solution

The fourth proportional to 220,221.52, 303,927.01 and 123,441.79 is: 170,361.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,221.52 : 303,927.01 = 123,441.79 : x
  2. Step 2: Convert to fraction form
    220,221.52/303,927.01 = 123,441.79/x
  3. Step 3: Cross multiply
    220,221.52x = 303,927.01 × 123,441.79
  4. Step 4: Simplify right side
    220,221.52x = 37,517,294,143.75
  5. Step 5: Solve for x
    x = 37,517,294,143.75/220,221.52
  6. Step 6: Final answer
    x = 170,361.62

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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.