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Finding the Fourth Proportional to 272,464.80, 408,697.20 and 272,464.80

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Solution

The fourth proportional to 272,464.80, 408,697.20 and 272,464.80 is: 408,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,464.80 : 408,697.20 = 272,464.80 : x
  2. Step 2: Convert to fraction form
    272,464.80/408,697.20 = 272,464.80/x
  3. Step 3: Cross multiply
    272,464.80x = 408,697.20 × 272,464.80
  4. Step 4: Simplify right side
    272,464.80x = 111,355,600,858.56
  5. Step 5: Solve for x
    x = 111,355,600,858.56/272,464.80
  6. Step 6: Final answer
    x = 408,697.20

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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.