Home / 272,589.36-408,967.77-139,563.04

Finding the Fourth Proportional to 272,589.36, 408,967.77 and 139,563.04

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Solution

The fourth proportional to 272,589.36, 408,967.77 and 139,563.04 is: 209,387.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,589.36 : 408,967.77 = 139,563.04 : x
  2. Step 2: Convert to fraction form
    272,589.36/408,967.77 = 139,563.04/x
  3. Step 3: Cross multiply
    272,589.36x = 408,967.77 × 139,563.04
  4. Step 4: Simplify right side
    272,589.36x = 57,076,785,243.22
  5. Step 5: Solve for x
    x = 57,076,785,243.22/272,589.36
  6. Step 6: Final answer
    x = 209,387.43

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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.