Home / 439,180.56-658,472.76-139,571.28

Finding the Fourth Proportional to 439,180.56, 658,472.76 and 139,571.28

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Solution

The fourth proportional to 439,180.56, 658,472.76 and 139,571.28 is: 209,262.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,180.56 : 658,472.76 = 139,571.28 : x
  2. Step 2: Convert to fraction form
    439,180.56/658,472.76 = 139,571.28/x
  3. Step 3: Cross multiply
    439,180.56x = 658,472.76 × 139,571.28
  4. Step 4: Simplify right side
    439,180.56x = 91,903,885,958.33
  5. Step 5: Solve for x
    x = 91,903,885,958.33/439,180.56
  6. Step 6: Final answer
    x = 209,262.19

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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.