Home / 465,109.35-641,842.71-261,161.88

Finding the Fourth Proportional to 465,109.35, 641,842.71 and 261,161.88

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Solution

The fourth proportional to 465,109.35, 641,842.71 and 261,161.88 is: 360,398.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,109.35 : 641,842.71 = 261,161.88 : x
  2. Step 2: Convert to fraction form
    465,109.35/641,842.71 = 261,161.88/x
  3. Step 3: Cross multiply
    465,109.35x = 641,842.71 × 261,161.88
  4. Step 4: Simplify right side
    465,109.35x = 167,624,848,807.90
  5. Step 5: Solve for x
    x = 167,624,848,807.90/465,109.35
  6. Step 6: Final answer
    x = 360,398.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.