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Finding the Fourth Proportional to 995.49, 1,493.83 and 346.68

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Solution

The fourth proportional to 995.49, 1,493.83 and 346.68 is: 520.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.49 : 1,493.83 = 346.68 : x
  2. Step 2: Convert to fraction form
    995.49/1,493.83 = 346.68/x
  3. Step 3: Cross multiply
    995.49x = 1,493.83 × 346.68
  4. Step 4: Simplify right side
    995.49x = 517,879.27
  5. Step 5: Solve for x
    x = 517,879.27/995.49
  6. Step 6: Final answer
    x = 520.23

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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.