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Finding the Fourth Proportional to 356,077.62, 491,720.22 and 228,974.04

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Solution

The fourth proportional to 356,077.62, 491,720.22 and 228,974.04 is: 316,198.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,077.62 : 491,720.22 = 228,974.04 : x
  2. Step 2: Convert to fraction form
    356,077.62/491,720.22 = 228,974.04/x
  3. Step 3: Cross multiply
    356,077.62x = 491,720.22 × 228,974.04
  4. Step 4: Simplify right side
    356,077.62x = 112,591,165,323.09
  5. Step 5: Solve for x
    x = 112,591,165,323.09/356,077.62
  6. Step 6: Final answer
    x = 316,198.38

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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.