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Finding the Fourth Proportional to 455,562.70, 683,344.05 and 206,244.70

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Solution

The fourth proportional to 455,562.70, 683,344.05 and 206,244.70 is: 309,367.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,562.70 : 683,344.05 = 206,244.70 : x
  2. Step 2: Convert to fraction form
    455,562.70/683,344.05 = 206,244.70/x
  3. Step 3: Cross multiply
    455,562.70x = 683,344.05 × 206,244.70
  4. Step 4: Simplify right side
    455,562.70x = 140,936,088,589.04
  5. Step 5: Solve for x
    x = 140,936,088,589.04/455,562.70
  6. Step 6: Final answer
    x = 309,367.05

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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.