Home / 640,936.23-961,330.91-167,667.27

Finding the Fourth Proportional to 640,936.23, 961,330.91 and 167,667.27

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Solution

The fourth proportional to 640,936.23, 961,330.91 and 167,667.27 is: 251,481.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,936.23 : 961,330.91 = 167,667.27 : x
  2. Step 2: Convert to fraction form
    640,936.23/961,330.91 = 167,667.27/x
  3. Step 3: Cross multiply
    640,936.23x = 961,330.91 × 167,667.27
  4. Step 4: Simplify right side
    640,936.23x = 161,183,728,407.98
  5. Step 5: Solve for x
    x = 161,183,728,407.98/640,936.23
  6. Step 6: Final answer
    x = 251,481.69

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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.