Home / 455,853.80-683,789.49-140,310.38

Finding the Fourth Proportional to 455,853.80, 683,789.49 and 140,310.38

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Solution

The fourth proportional to 455,853.80, 683,789.49 and 140,310.38 is: 210,468.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,853.80 : 683,789.49 = 140,310.38 : x
  2. Step 2: Convert to fraction form
    455,853.80/683,789.49 = 140,310.38/x
  3. Step 3: Cross multiply
    455,853.80x = 683,789.49 × 140,310.38
  4. Step 4: Simplify right side
    455,853.80x = 95,942,763,181.91
  5. Step 5: Solve for x
    x = 95,942,763,181.91/455,853.80
  6. Step 6: Final answer
    x = 210,468.28

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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.