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Finding the Fourth Proportional to 286,519.92, 429,758.52 and 115,753.44

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Solution

The fourth proportional to 286,519.92, 429,758.52 and 115,753.44 is: 173,621.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,519.92 : 429,758.52 = 115,753.44 : x
  2. Step 2: Convert to fraction form
    286,519.92/429,758.52 = 115,753.44/x
  3. Step 3: Cross multiply
    286,519.92x = 429,758.52 × 115,753.44
  4. Step 4: Simplify right side
    286,519.92x = 49,746,027,059.31
  5. Step 5: Solve for x
    x = 49,746,027,059.31/286,519.92
  6. Step 6: Final answer
    x = 173,621.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.