Home / 315,550.20-472,403.70-282,372.60

Finding the Fourth Proportional to 315,550.20, 472,403.70 and 282,372.60

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Solution

The fourth proportional to 315,550.20, 472,403.70 and 282,372.60 is: 422,734.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,550.20 : 472,403.70 = 282,372.60 : x
  2. Step 2: Convert to fraction form
    315,550.20/472,403.70 = 282,372.60/x
  3. Step 3: Cross multiply
    315,550.20x = 472,403.70 × 282,372.60
  4. Step 4: Simplify right side
    315,550.20x = 133,393,861,018.62
  5. Step 5: Solve for x
    x = 133,393,861,018.62/315,550.20
  6. Step 6: Final answer
    x = 422,734.20

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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.