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Finding the Fourth Proportional to 609.99, 914.82 and 199.05

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Solution

The fourth proportional to 609.99, 914.82 and 199.05 is: 298.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.99 : 914.82 = 199.05 : x
  2. Step 2: Convert to fraction form
    609.99/914.82 = 199.05/x
  3. Step 3: Cross multiply
    609.99x = 914.82 × 199.05
  4. Step 4: Simplify right side
    609.99x = 182,094.92
  5. Step 5: Solve for x
    x = 182,094.92/609.99
  6. Step 6: Final answer
    x = 298.52

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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.