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Finding the Fourth Proportional to 316,161.38, 436,103.22 and 220,633.22

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Solution

The fourth proportional to 316,161.38, 436,103.22 and 220,633.22 is: 304,334.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,161.38 : 436,103.22 = 220,633.22 : x
  2. Step 2: Convert to fraction form
    316,161.38/436,103.22 = 220,633.22/x
  3. Step 3: Cross multiply
    316,161.38x = 436,103.22 × 220,633.22
  4. Step 4: Simplify right side
    316,161.38x = 96,218,857,680.97
  5. Step 5: Solve for x
    x = 96,218,857,680.97/316,161.38
  6. Step 6: Final answer
    x = 304,334.63

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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.