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Finding the Fourth Proportional to 222,665.42, 333,998.80 and 54,185.77

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Solution

The fourth proportional to 222,665.42, 333,998.80 and 54,185.77 is: 81,278.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,665.42 : 333,998.80 = 54,185.77 : x
  2. Step 2: Convert to fraction form
    222,665.42/333,998.80 = 54,185.77/x
  3. Step 3: Cross multiply
    222,665.42x = 333,998.80 × 54,185.77
  4. Step 4: Simplify right side
    222,665.42x = 18,097,982,157.08
  5. Step 5: Solve for x
    x = 18,097,982,157.08/222,665.42
  6. Step 6: Final answer
    x = 81,278.82

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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.