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Finding the Fourth Proportional to 397,383.39, 548,403.50 and 227,650.32

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Solution

The fourth proportional to 397,383.39, 548,403.50 and 227,650.32 is: 314,165.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,383.39 : 548,403.50 = 227,650.32 : x
  2. Step 2: Convert to fraction form
    397,383.39/548,403.50 = 227,650.32/x
  3. Step 3: Cross multiply
    397,383.39x = 548,403.50 × 227,650.32
  4. Step 4: Simplify right side
    397,383.39x = 124,844,231,125.87
  5. Step 5: Solve for x
    x = 124,844,231,125.87/397,383.39
  6. Step 6: Final answer
    x = 314,165.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.