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Finding the Fourth Proportional to 324,634.70, 447,998.14 and 181,400.78

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Solution

The fourth proportional to 324,634.70, 447,998.14 and 181,400.78 is: 250,334.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,634.70 : 447,998.14 = 181,400.78 : x
  2. Step 2: Convert to fraction form
    324,634.70/447,998.14 = 181,400.78/x
  3. Step 3: Cross multiply
    324,634.70x = 447,998.14 × 181,400.78
  4. Step 4: Simplify right side
    324,634.70x = 81,267,212,034.55
  5. Step 5: Solve for x
    x = 81,267,212,034.55/324,634.70
  6. Step 6: Final answer
    x = 250,334.34

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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.