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Finding the Fourth Proportional to 272,019.20, 408,028.80 and 247,524.80

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Solution

The fourth proportional to 272,019.20, 408,028.80 and 247,524.80 is: 371,287.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,019.20 : 408,028.80 = 247,524.80 : x
  2. Step 2: Convert to fraction form
    272,019.20/408,028.80 = 247,524.80/x
  3. Step 3: Cross multiply
    272,019.20x = 408,028.80 × 247,524.80
  4. Step 4: Simplify right side
    272,019.20x = 100,997,247,114.24
  5. Step 5: Solve for x
    x = 100,997,247,114.24/272,019.20
  6. Step 6: Final answer
    x = 371,287.20

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1.5x scale

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.