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Finding the Fourth Proportional to 223,642.08, 308,625.12 and 123,037.92

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Solution

The fourth proportional to 223,642.08, 308,625.12 and 123,037.92 is: 169,791.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,642.08 : 308,625.12 = 123,037.92 : x
  2. Step 2: Convert to fraction form
    223,642.08/308,625.12 = 123,037.92/x
  3. Step 3: Cross multiply
    223,642.08x = 308,625.12 × 123,037.92
  4. Step 4: Simplify right side
    223,642.08x = 37,972,592,824.55
  5. Step 5: Solve for x
    x = 37,972,592,824.55/223,642.08
  6. Step 6: Final answer
    x = 169,791.81

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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.