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Finding the Fourth Proportional to 911.00, 1,366.26 and 294.59

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Solution

The fourth proportional to 911.00, 1,366.26 and 294.59 is: 441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    911.00 : 1,366.26 = 294.59 : x
  2. Step 2: Convert to fraction form
    911.00/1,366.26 = 294.59/x
  3. Step 3: Cross multiply
    911.00x = 1,366.26 × 294.59
  4. Step 4: Simplify right side
    911.00x = 402,479.70
  5. Step 5: Solve for x
    x = 402,479.70/911.00
  6. Step 6: Final answer
    x = 441.80

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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.