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Finding the Fourth Proportional to 279,768.93, 419,777.46 and 146,617.58

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Solution

The fourth proportional to 279,768.93, 419,777.46 and 146,617.58 is: 219,991.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,768.93 : 419,777.46 = 146,617.58 : x
  2. Step 2: Convert to fraction form
    279,768.93/419,777.46 = 146,617.58/x
  3. Step 3: Cross multiply
    279,768.93x = 419,777.46 × 146,617.58
  4. Step 4: Simplify right side
    279,768.93x = 61,546,753,224.86
  5. Step 5: Solve for x
    x = 61,546,753,224.86/279,768.93
  6. Step 6: Final answer
    x = 219,991.38

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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.