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Finding the Fourth Proportional to 223,848.28, 308,912.70 and 123,249.88

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Solution

The fourth proportional to 223,848.28, 308,912.70 and 123,249.88 is: 170,085.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,848.28 : 308,912.70 = 123,249.88 : x
  2. Step 2: Convert to fraction form
    223,848.28/308,912.70 = 123,249.88/x
  3. Step 3: Cross multiply
    223,848.28x = 308,912.70 × 123,249.88
  4. Step 4: Simplify right side
    223,848.28x = 38,073,453,205.48
  5. Step 5: Solve for x
    x = 38,073,453,205.48/223,848.28
  6. Step 6: Final answer
    x = 170,085.98

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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.