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Finding the Fourth Proportional to 911.01, 1,366.53 and 333.93

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Solution

The fourth proportional to 911.01, 1,366.53 and 333.93 is: 500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    911.01 : 1,366.53 = 333.93 : x
  2. Step 2: Convert to fraction form
    911.01/1,366.53 = 333.93/x
  3. Step 3: Cross multiply
    911.01x = 1,366.53 × 333.93
  4. Step 4: Simplify right side
    911.01x = 456,325.36
  5. Step 5: Solve for x
    x = 456,325.36/911.01
  6. Step 6: Final answer
    x = 500.90

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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.