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Finding the Fourth Proportional to 540.70, 811.40 and 232.61

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Solution

The fourth proportional to 540.70, 811.40 and 232.61 is: 349.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.70 : 811.40 = 232.61 : x
  2. Step 2: Convert to fraction form
    540.70/811.40 = 232.61/x
  3. Step 3: Cross multiply
    540.70x = 811.40 × 232.61
  4. Step 4: Simplify right side
    540.70x = 188,734.53
  5. Step 5: Solve for x
    x = 188,734.53/540.70
  6. Step 6: Final answer
    x = 349.06

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.