Home / 272,324.75-408,485.03-72,661.19

Finding the Fourth Proportional to 272,324.75, 408,485.03 and 72,661.19

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Solution

The fourth proportional to 272,324.75, 408,485.03 and 72,661.19 is: 108,991.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,324.75 : 408,485.03 = 72,661.19 : x
  2. Step 2: Convert to fraction form
    272,324.75/408,485.03 = 72,661.19/x
  3. Step 3: Cross multiply
    272,324.75x = 408,485.03 × 72,661.19
  4. Step 4: Simplify right side
    272,324.75x = 29,681,005,971.25
  5. Step 5: Solve for x
    x = 29,681,005,971.25/272,324.75
  6. Step 6: Final answer
    x = 108,991.22

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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.