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Finding the Fourth Proportional to 223,405.98, 335,003.69 and 81,150.91

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Solution

The fourth proportional to 223,405.98, 335,003.69 and 81,150.91 is: 121,688.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,405.98 : 335,003.69 = 81,150.91 : x
  2. Step 2: Convert to fraction form
    223,405.98/335,003.69 = 81,150.91/x
  3. Step 3: Cross multiply
    223,405.98x = 335,003.69 × 81,150.91
  4. Step 4: Simplify right side
    223,405.98x = 27,185,855,489.56
  5. Step 5: Solve for x
    x = 27,185,855,489.56/223,405.98
  6. Step 6: Final answer
    x = 121,688.13

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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.