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Finding the Fourth Proportional to 279,727.35, 419,238.20 and 119,614.01

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Solution

The fourth proportional to 279,727.35, 419,238.20 and 119,614.01 is: 179,270.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,727.35 : 419,238.20 = 119,614.01 : x
  2. Step 2: Convert to fraction form
    279,727.35/419,238.20 = 119,614.01/x
  3. Step 3: Cross multiply
    279,727.35x = 419,238.20 × 119,614.01
  4. Step 4: Simplify right side
    279,727.35x = 50,146,759,552.92
  5. Step 5: Solve for x
    x = 50,146,759,552.92/279,727.35
  6. Step 6: Final answer
    x = 179,270.13

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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.