Home / 439,190.56-658,487.76-139,581.28

Finding the Fourth Proportional to 439,190.56, 658,487.76 and 139,581.28

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Solution

The fourth proportional to 439,190.56, 658,487.76 and 139,581.28 is: 209,277.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,190.56 : 658,487.76 = 139,581.28 : x
  2. Step 2: Convert to fraction form
    439,190.56/658,487.76 = 139,581.28/x
  3. Step 3: Cross multiply
    439,190.56x = 658,487.76 × 139,581.28
  4. Step 4: Simplify right side
    439,190.56x = 91,912,564,405.13
  5. Step 5: Solve for x
    x = 91,912,564,405.13/439,190.56
  6. Step 6: Final answer
    x = 209,277.19

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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.