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Finding the Fourth Proportional to 440,904.82, 661,391.41 and 137,260.84

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Solution

The fourth proportional to 440,904.82, 661,391.41 and 137,260.84 is: 205,901.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,904.82 : 661,391.41 = 137,260.84 : x
  2. Step 2: Convert to fraction form
    440,904.82/661,391.41 = 137,260.84/x
  3. Step 3: Cross multiply
    440,904.82x = 661,391.41 × 137,260.84
  4. Step 4: Simplify right side
    440,904.82x = 90,783,137,198.43
  5. Step 5: Solve for x
    x = 90,783,137,198.43/440,904.82
  6. Step 6: Final answer
    x = 205,901.90

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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.