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Finding the Fourth Proportional to 883.26, 1,324.90 and 266.96

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Solution

The fourth proportional to 883.26, 1,324.90 and 266.96 is: 400.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.26 : 1,324.90 = 266.96 : x
  2. Step 2: Convert to fraction form
    883.26/1,324.90 = 266.96/x
  3. Step 3: Cross multiply
    883.26x = 1,324.90 × 266.96
  4. Step 4: Simplify right side
    883.26x = 353,698.95
  5. Step 5: Solve for x
    x = 353,698.95/883.26
  6. Step 6: Final answer
    x = 400.45

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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.