Home / 272,610.66-408,999.68-139,584.30

Finding the Fourth Proportional to 272,610.66, 408,999.68 and 139,584.30

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Solution

The fourth proportional to 272,610.66, 408,999.68 and 139,584.30 is: 209,419.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,610.66 : 408,999.68 = 139,584.30 : x
  2. Step 2: Convert to fraction form
    272,610.66/408,999.68 = 139,584.30/x
  3. Step 3: Cross multiply
    272,610.66x = 408,999.68 × 139,584.30
  4. Step 4: Simplify right side
    272,610.66x = 57,089,934,033.02
  5. Step 5: Solve for x
    x = 57,089,934,033.02/272,610.66
  6. Step 6: Final answer
    x = 209,419.30

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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.