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Finding the Fourth Proportional to 223,866.88, 308,936 and 123,264

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Solution

The fourth proportional to 223,866.88, 308,936 and 123,264 is: 170,104.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,866.88 : 308,936 = 123,264 : x
  2. Step 2: Convert to fraction form
    223,866.88/308,936 = 123,264/x
  3. Step 3: Cross multiply
    223,866.88x = 308,936 × 123,264
  4. Step 4: Simplify right side
    223,866.88x = 38,080,687,104
  5. Step 5: Solve for x
    x = 38,080,687,104/223,866.88
  6. Step 6: Final answer
    x = 170,104.16

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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.