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Finding the Fourth Proportional to 665.81, 998.86 and 232.95

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Solution

The fourth proportional to 665.81, 998.86 and 232.95 is: 349.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    665.81 : 998.86 = 232.95 : x
  2. Step 2: Convert to fraction form
    665.81/998.86 = 232.95/x
  3. Step 3: Cross multiply
    665.81x = 998.86 × 232.95
  4. Step 4: Simplify right side
    665.81x = 232,684.44
  5. Step 5: Solve for x
    x = 232,684.44/665.81
  6. Step 6: Final answer
    x = 349.48

Related Problems

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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.