Home / 455,195.10-682,792.65-218,999.10

Finding the Fourth Proportional to 455,195.10, 682,792.65 and 218,999.10

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Solution

The fourth proportional to 455,195.10, 682,792.65 and 218,999.10 is: 328,498.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,195.10 : 682,792.65 = 218,999.10 : x
  2. Step 2: Convert to fraction form
    455,195.10/682,792.65 = 218,999.10/x
  3. Step 3: Cross multiply
    455,195.10x = 682,792.65 × 218,999.10
  4. Step 4: Simplify right side
    455,195.10x = 149,530,975,836.62
  5. Step 5: Solve for x
    x = 149,530,975,836.62/455,195.10
  6. Step 6: Final answer
    x = 328,498.65

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Similar ratio
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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.