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Finding the Fourth Proportional to 223,443.86, 308,320.43 and 131,508.45

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Solution

The fourth proportional to 223,443.86, 308,320.43 and 131,508.45 is: 181,462.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,443.86 : 308,320.43 = 131,508.45 : x
  2. Step 2: Convert to fraction form
    223,443.86/308,320.43 = 131,508.45/x
  3. Step 3: Cross multiply
    223,443.86x = 308,320.43 × 131,508.45
  4. Step 4: Simplify right side
    223,443.86x = 40,546,741,195.09
  5. Step 5: Solve for x
    x = 40,546,741,195.09/223,443.86
  6. Step 6: Final answer
    x = 181,462.77

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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.