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Finding the Fourth Proportional to 640,380.57, 960,429.38 and 184,872.81

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Solution

The fourth proportional to 640,380.57, 960,429.38 and 184,872.81 is: 277,268.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,380.57 : 960,429.38 = 184,872.81 : x
  2. Step 2: Convert to fraction form
    640,380.57/960,429.38 = 184,872.81/x
  3. Step 3: Cross multiply
    640,380.57x = 960,429.38 × 184,872.81
  4. Step 4: Simplify right side
    640,380.57x = 177,557,277,362.79
  5. Step 5: Solve for x
    x = 177,557,277,362.79/640,380.57
  6. Step 6: Final answer
    x = 277,268.37

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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.