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Finding the Fourth Proportional to 551,295.20, 826,748.40 and 251,919.20

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Solution

The fourth proportional to 551,295.20, 826,748.40 and 251,919.20 is: 377,789.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,295.20 : 826,748.40 = 251,919.20 : x
  2. Step 2: Convert to fraction form
    551,295.20/826,748.40 = 251,919.20/x
  3. Step 3: Cross multiply
    551,295.20x = 826,748.40 × 251,919.20
  4. Step 4: Simplify right side
    551,295.20x = 208,273,795,529.28
  5. Step 5: Solve for x
    x = 208,273,795,529.28/551,295.20
  6. Step 6: Final answer
    x = 377,789.97

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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.