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Finding the Fourth Proportional to 914.70, 1,372.23 and 366.66

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Solution

The fourth proportional to 914.70, 1,372.23 and 366.66 is: 550.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    914.70 : 1,372.23 = 366.66 : x
  2. Step 2: Convert to fraction form
    914.70/1,372.23 = 366.66/x
  3. Step 3: Cross multiply
    914.70x = 1,372.23 × 366.66
  4. Step 4: Simplify right side
    914.70x = 503,141.85
  5. Step 5: Solve for x
    x = 503,141.85/914.70
  6. Step 6: Final answer
    x = 550.06

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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.