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Finding the Fourth Proportional to 439,022.99, 658,647.82 and 135,410.32

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Solution

The fourth proportional to 439,022.99, 658,647.82 and 135,410.32 is: 203,150.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,022.99 : 658,647.82 = 135,410.32 : x
  2. Step 2: Convert to fraction form
    439,022.99/658,647.82 = 135,410.32/x
  3. Step 3: Cross multiply
    439,022.99x = 658,647.82 × 135,410.32
  4. Step 4: Simplify right side
    439,022.99x = 89,187,708,103.21
  5. Step 5: Solve for x
    x = 89,187,708,103.21/439,022.99
  6. Step 6: Final answer
    x = 203,150.43

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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.