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Finding the Fourth Proportional to 440,859.97, 661,383.46 and 141,550.79

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Solution

The fourth proportional to 440,859.97, 661,383.46 and 141,550.79 is: 212,356.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,859.97 : 661,383.46 = 141,550.79 : x
  2. Step 2: Convert to fraction form
    440,859.97/661,383.46 = 141,550.79/x
  3. Step 3: Cross multiply
    440,859.97x = 661,383.46 × 141,550.79
  4. Step 4: Simplify right side
    440,859.97x = 93,619,351,846.24
  5. Step 5: Solve for x
    x = 93,619,351,846.24/440,859.97
  6. Step 6: Final answer
    x = 212,356.21

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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.