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Finding the Fourth Proportional to 551,338.58, 827,122.67 and 172,244.00

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Solution

The fourth proportional to 551,338.58, 827,122.67 and 172,244.00 is: 258,401.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,338.58 : 827,122.67 = 172,244.00 : x
  2. Step 2: Convert to fraction form
    551,338.58/827,122.67 = 172,244.00/x
  3. Step 3: Cross multiply
    551,338.58x = 827,122.67 × 172,244.00
  4. Step 4: Simplify right side
    551,338.58x = 142,466,912,174.65
  5. Step 5: Solve for x
    x = 142,466,912,174.65/551,338.58
  6. Step 6: Final answer
    x = 258,401.86

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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.