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Finding the Fourth Proportional to 362,021.40, 543,906.90 and 323,530.20

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Solution

The fourth proportional to 362,021.40, 543,906.90 and 323,530.20 is: 486,077.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,021.40 : 543,906.90 = 323,530.20 : x
  2. Step 2: Convert to fraction form
    362,021.40/543,906.90 = 323,530.20/x
  3. Step 3: Cross multiply
    362,021.40x = 543,906.90 × 323,530.20
  4. Step 4: Simplify right side
    362,021.40x = 175,970,308,138.38
  5. Step 5: Solve for x
    x = 175,970,308,138.38/362,021.40
  6. Step 6: Final answer
    x = 486,077.09

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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.