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Finding the Fourth Proportional to 664,300.70, 996,596.85 and 214,945.10

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Solution

The fourth proportional to 664,300.70, 996,596.85 and 214,945.10 is: 322,464.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,300.70 : 996,596.85 = 214,945.10 : x
  2. Step 2: Convert to fraction form
    664,300.70/996,596.85 = 214,945.10/x
  3. Step 3: Cross multiply
    664,300.70x = 996,596.85 × 214,945.10
  4. Step 4: Simplify right side
    664,300.70x = 214,213,609,582.94
  5. Step 5: Solve for x
    x = 214,213,609,582.94/664,300.70
  6. Step 6: Final answer
    x = 322,464.83

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Double scale
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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.