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Finding the Fourth Proportional to 272,002.80, 408,004.20 and 124,546.80

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Solution

The fourth proportional to 272,002.80, 408,004.20 and 124,546.80 is: 186,820.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,002.80 : 408,004.20 = 124,546.80 : x
  2. Step 2: Convert to fraction form
    272,002.80/408,004.20 = 124,546.80/x
  3. Step 3: Cross multiply
    272,002.80x = 408,004.20 × 124,546.80
  4. Step 4: Simplify right side
    272,002.80x = 50,815,617,496.56
  5. Step 5: Solve for x
    x = 50,815,617,496.56/272,002.80
  6. Step 6: Final answer
    x = 186,820.20

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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.