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Finding the Fourth Proportional to 483,781.80, 725,327.10 and 217,324.20

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Solution

The fourth proportional to 483,781.80, 725,327.10 and 217,324.20 is: 325,831.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,781.80 : 725,327.10 = 217,324.20 : x
  2. Step 2: Convert to fraction form
    483,781.80/725,327.10 = 217,324.20/x
  3. Step 3: Cross multiply
    483,781.80x = 725,327.10 × 217,324.20
  4. Step 4: Simplify right side
    483,781.80x = 157,631,131,745.82
  5. Step 5: Solve for x
    x = 157,631,131,745.82/483,781.80
  6. Step 6: Final answer
    x = 325,831.05

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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.