Home / 455,743.48-683,616.90-140,198.20

Finding the Fourth Proportional to 455,743.48, 683,616.90 and 140,198.20

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Solution

The fourth proportional to 455,743.48, 683,616.90 and 140,198.20 is: 210,297.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,743.48 : 683,616.90 = 140,198.20 : x
  2. Step 2: Convert to fraction form
    455,743.48/683,616.90 = 140,198.20/x
  3. Step 3: Cross multiply
    455,743.48x = 683,616.90 × 140,198.20
  4. Step 4: Simplify right side
    455,743.48x = 95,841,858,869.58
  5. Step 5: Solve for x
    x = 95,841,858,869.58/455,743.48
  6. Step 6: Final answer
    x = 210,297.82

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1.5x scale

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.