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Finding the Fourth Proportional to 223,997.45, 335,999.59 and 81,871.61

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Solution

The fourth proportional to 223,997.45, 335,999.59 and 81,871.61 is: 122,808.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,997.45 : 335,999.59 = 81,871.61 : x
  2. Step 2: Convert to fraction form
    223,997.45/335,999.59 = 81,871.61/x
  3. Step 3: Cross multiply
    223,997.45x = 335,999.59 × 81,871.61
  4. Step 4: Simplify right side
    223,997.45x = 27,508,827,858.49
  5. Step 5: Solve for x
    x = 27,508,827,858.49/223,997.45
  6. Step 6: Final answer
    x = 122,808.66

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1.5x scale

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.