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Finding the Fourth Proportional to 223,444.86, 335,061.78 and 81,191.04

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Solution

The fourth proportional to 223,444.86, 335,061.78 and 81,191.04 is: 121,748.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,444.86 : 335,061.78 = 81,191.04 : x
  2. Step 2: Convert to fraction form
    223,444.86/335,061.78 = 81,191.04/x
  3. Step 3: Cross multiply
    223,444.86x = 335,061.78 × 81,191.04
  4. Step 4: Simplify right side
    223,444.86x = 27,204,014,382.45
  5. Step 5: Solve for x
    x = 27,204,014,382.45/223,444.86
  6. Step 6: Final answer
    x = 121,748.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.