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Finding the Fourth Proportional to 404,216.87, 606,149.87 and 214,635.96

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Solution

The fourth proportional to 404,216.87, 606,149.87 and 214,635.96 is: 321,860.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,216.87 : 606,149.87 = 214,635.96 : x
  2. Step 2: Convert to fraction form
    404,216.87/606,149.87 = 214,635.96/x
  3. Step 3: Cross multiply
    404,216.87x = 606,149.87 × 214,635.96
  4. Step 4: Simplify right side
    404,216.87x = 130,101,558,178.15
  5. Step 5: Solve for x
    x = 130,101,558,178.15/404,216.87
  6. Step 6: Final answer
    x = 321,860.79

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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.