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Finding the Fourth Proportional to 551,171.93, 826,757.57 and 172,125.14

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Solution

The fourth proportional to 551,171.93, 826,757.57 and 172,125.14 is: 258,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,171.93 : 826,757.57 = 172,125.14 : x
  2. Step 2: Convert to fraction form
    551,171.93/826,757.57 = 172,125.14/x
  3. Step 3: Cross multiply
    551,171.93x = 826,757.57 × 172,125.14
  4. Step 4: Simplify right side
    551,171.93x = 142,305,758,778.84
  5. Step 5: Solve for x
    x = 142,305,758,778.84/551,171.93
  6. Step 6: Final answer
    x = 258,187.60

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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.