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Finding the Fourth Proportional to 222,015.82, 333,154.96 and 81,872.86

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Solution

The fourth proportional to 222,015.82, 333,154.96 and 81,872.86 is: 122,857.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,015.82 : 333,154.96 = 81,872.86 : x
  2. Step 2: Convert to fraction form
    222,015.82/333,154.96 = 81,872.86/x
  3. Step 3: Cross multiply
    222,015.82x = 333,154.96 × 81,872.86
  4. Step 4: Simplify right side
    222,015.82x = 27,276,349,398.39
  5. Step 5: Solve for x
    x = 27,276,349,398.39/222,015.82
  6. Step 6: Final answer
    x = 122,857.68

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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.