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Finding the Fourth Proportional to 279,855.54, 419,906.97 and 146,703.96

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Solution

The fourth proportional to 279,855.54, 419,906.97 and 146,703.96 is: 220,120.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,855.54 : 419,906.97 = 146,703.96 : x
  2. Step 2: Convert to fraction form
    279,855.54/419,906.97 = 146,703.96/x
  3. Step 3: Cross multiply
    279,855.54x = 419,906.97 × 146,703.96
  4. Step 4: Simplify right side
    279,855.54x = 61,602,015,330.60
  5. Step 5: Solve for x
    x = 61,602,015,330.60/279,855.54
  6. Step 6: Final answer
    x = 220,120.76

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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.