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Finding the Fourth Proportional to 397,759.62, 548,932.77 and 228,019.26

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Solution

The fourth proportional to 397,759.62, 548,932.77 and 228,019.26 is: 314,680.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,759.62 : 548,932.77 = 228,019.26 : x
  2. Step 2: Convert to fraction form
    397,759.62/548,932.77 = 228,019.26/x
  3. Step 3: Cross multiply
    397,759.62x = 548,932.77 × 228,019.26
  4. Step 4: Simplify right side
    397,759.62x = 125,167,244,005.15
  5. Step 5: Solve for x
    x = 125,167,244,005.15/397,759.62
  6. Step 6: Final answer
    x = 314,680.62

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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.