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Finding the Fourth Proportional to 551,765.12, 827,201.03 and 172,490.58

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Solution

The fourth proportional to 551,765.12, 827,201.03 and 172,490.58 is: 258,596.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,765.12 : 827,201.03 = 172,490.58 : x
  2. Step 2: Convert to fraction form
    551,765.12/827,201.03 = 172,490.58/x
  3. Step 3: Cross multiply
    551,765.12x = 827,201.03 × 172,490.58
  4. Step 4: Simplify right side
    551,765.12x = 142,684,384,578.84
  5. Step 5: Solve for x
    x = 142,684,384,578.84/551,765.12
  6. Step 6: Final answer
    x = 258,596.24

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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.