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Finding the Fourth Proportional to 226,630.54, 312,775.86 and 129,843.64

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Solution

The fourth proportional to 226,630.54, 312,775.86 and 129,843.64 is: 179,198.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,630.54 : 312,775.86 = 129,843.64 : x
  2. Step 2: Convert to fraction form
    226,630.54/312,775.86 = 129,843.64/x
  3. Step 3: Cross multiply
    226,630.54x = 312,775.86 × 129,843.64
  4. Step 4: Simplify right side
    226,630.54x = 40,611,956,166.53
  5. Step 5: Solve for x
    x = 40,611,956,166.53/226,630.54
  6. Step 6: Final answer
    x = 179,198.96

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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.