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Finding the Fourth Proportional to 324,448, 486,672 and 102,832

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Solution

The fourth proportional to 324,448, 486,672 and 102,832 is: 154,248

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,448 : 486,672 = 102,832 : x
  2. Step 2: Convert to fraction form
    324,448/486,672 = 102,832/x
  3. Step 3: Cross multiply
    324,448x = 486,672 × 102,832
  4. Step 4: Simplify right side
    324,448x = 50,045,455,104
  5. Step 5: Solve for x
    x = 50,045,455,104/324,448
  6. Step 6: Final answer
    x = 154,248

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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.