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Finding the Fourth Proportional to 551,329.88, 827,016.70 and 172,505.04

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Solution

The fourth proportional to 551,329.88, 827,016.70 and 172,505.04 is: 258,764.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,329.88 : 827,016.70 = 172,505.04 : x
  2. Step 2: Convert to fraction form
    551,329.88/827,016.70 = 172,505.04/x
  3. Step 3: Cross multiply
    551,329.88x = 827,016.70 × 172,505.04
  4. Step 4: Simplify right side
    551,329.88x = 142,664,548,914.17
  5. Step 5: Solve for x
    x = 142,664,548,914.17/551,329.88
  6. Step 6: Final answer
    x = 258,764.41

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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.