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Finding the Fourth Proportional to 551,232.87, 826,527.42 and 213,879.51

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Solution

The fourth proportional to 551,232.87, 826,527.42 and 213,879.51 is: 320,694.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,232.87 : 826,527.42 = 213,879.51 : x
  2. Step 2: Convert to fraction form
    551,232.87/826,527.42 = 213,879.51/x
  3. Step 3: Cross multiply
    551,232.87x = 826,527.42 × 213,879.51
  4. Step 4: Simplify right side
    551,232.87x = 176,777,279,591.16
  5. Step 5: Solve for x
    x = 176,777,279,591.16/551,232.87
  6. Step 6: Final answer
    x = 320,694.37

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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.