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Finding the Fourth Proportional to 996.99, 1,496.09 and 348.18

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Solution

The fourth proportional to 996.99, 1,496.09 and 348.18 is: 522.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.99 : 1,496.09 = 348.18 : x
  2. Step 2: Convert to fraction form
    996.99/1,496.09 = 348.18/x
  3. Step 3: Cross multiply
    996.99x = 1,496.09 × 348.18
  4. Step 4: Simplify right side
    996.99x = 520,908.62
  5. Step 5: Solve for x
    x = 520,908.62/996.99
  6. Step 6: Final answer
    x = 522.48

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Half scale
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Double scale
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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.