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Finding the Fourth Proportional to 773.66, 1,160.50 and 225.85

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Solution

The fourth proportional to 773.66, 1,160.50 and 225.85 is: 338.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    773.66 : 1,160.50 = 225.85 : x
  2. Step 2: Convert to fraction form
    773.66/1,160.50 = 225.85/x
  3. Step 3: Cross multiply
    773.66x = 1,160.50 × 225.85
  4. Step 4: Simplify right side
    773.66x = 262,095.46
  5. Step 5: Solve for x
    x = 262,095.46/773.66
  6. Step 6: Final answer
    x = 338.77

Related Problems

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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.