Home / 469,918.11-648,469.60-255,053.57

Finding the Fourth Proportional to 469,918.11, 648,469.60 and 255,053.57

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Solution

The fourth proportional to 469,918.11, 648,469.60 and 255,053.57 is: 351,964.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,918.11 : 648,469.60 = 255,053.57 : x
  2. Step 2: Convert to fraction form
    469,918.11/648,469.60 = 255,053.57/x
  3. Step 3: Cross multiply
    469,918.11x = 648,469.60 × 255,053.57
  4. Step 4: Simplify right side
    469,918.11x = 165,394,481,998.86
  5. Step 5: Solve for x
    x = 165,394,481,998.86/469,918.11
  6. Step 6: Final answer
    x = 351,964.48

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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.