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Finding the Fourth Proportional to 551,845.80, 827,768.70 and 219,421.80

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Solution

The fourth proportional to 551,845.80, 827,768.70 and 219,421.80 is: 329,132.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,845.80 : 827,768.70 = 219,421.80 : x
  2. Step 2: Convert to fraction form
    551,845.80/827,768.70 = 219,421.80/x
  3. Step 3: Cross multiply
    551,845.80x = 827,768.70 × 219,421.80
  4. Step 4: Simplify right side
    551,845.80x = 181,630,498,137.66
  5. Step 5: Solve for x
    x = 181,630,498,137.66/551,845.80
  6. Step 6: Final answer
    x = 329,132.70

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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.