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Finding the Fourth Proportional to 397,383.57, 548,367.17 and 227,628.63

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Solution

The fourth proportional to 397,383.57, 548,367.17 and 227,628.63 is: 314,114.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,383.57 : 548,367.17 = 227,628.63 : x
  2. Step 2: Convert to fraction form
    397,383.57/548,367.17 = 227,628.63/x
  3. Step 3: Cross multiply
    397,383.57x = 548,367.17 × 227,628.63
  4. Step 4: Simplify right side
    397,383.57x = 124,824,066,505.93
  5. Step 5: Solve for x
    x = 124,824,066,505.93/397,383.57
  6. Step 6: Final answer
    x = 314,114.81

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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.