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Finding the Fourth Proportional to 549,200.80, 822,879.60 and 268,112.80

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Solution

The fourth proportional to 549,200.80, 822,879.60 and 268,112.80 is: 401,719.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,200.80 : 822,879.60 = 268,112.80 : x
  2. Step 2: Convert to fraction form
    549,200.80/822,879.60 = 268,112.80/x
  3. Step 3: Cross multiply
    549,200.80x = 822,879.60 × 268,112.80
  4. Step 4: Simplify right side
    549,200.80x = 220,624,553,618.88
  5. Step 5: Solve for x
    x = 220,624,553,618.88/549,200.80
  6. Step 6: Final answer
    x = 401,719.29

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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.