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Finding the Fourth Proportional to 324,471.22, 447,523.41 and 279,225.34

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Solution

The fourth proportional to 324,471.22, 447,523.41 and 279,225.34 is: 385,118.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,471.22 : 447,523.41 = 279,225.34 : x
  2. Step 2: Convert to fraction form
    324,471.22/447,523.41 = 279,225.34/x
  3. Step 3: Cross multiply
    324,471.22x = 447,523.41 × 279,225.34
  4. Step 4: Simplify right side
    324,471.22x = 124,959,876,315.21
  5. Step 5: Solve for x
    x = 124,959,876,315.21/324,471.22
  6. Step 6: Final answer
    x = 385,118.52

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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.