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Finding the Fourth Proportional to 223,243.52, 308,076 and 122,641.44

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Solution

The fourth proportional to 223,243.52, 308,076 and 122,641.44 is: 169,245.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,243.52 : 308,076 = 122,641.44 : x
  2. Step 2: Convert to fraction form
    223,243.52/308,076 = 122,641.44/x
  3. Step 3: Cross multiply
    223,243.52x = 308,076 × 122,641.44
  4. Step 4: Simplify right side
    223,243.52x = 37,782,884,269.44
  5. Step 5: Solve for x
    x = 37,782,884,269.44/223,243.52
  6. Step 6: Final answer
    x = 169,245.16

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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.