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Finding the Fourth Proportional to 362,226.80, 543,340.20 and 287,577.20

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Solution

The fourth proportional to 362,226.80, 543,340.20 and 287,577.20 is: 431,365.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,226.80 : 543,340.20 = 287,577.20 : x
  2. Step 2: Convert to fraction form
    362,226.80/543,340.20 = 287,577.20/x
  3. Step 3: Cross multiply
    362,226.80x = 543,340.20 × 287,577.20
  4. Step 4: Simplify right side
    362,226.80x = 156,252,253,363.44
  5. Step 5: Solve for x
    x = 156,252,253,363.44/362,226.80
  6. Step 6: Final answer
    x = 431,365.80

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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.