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Finding the Fourth Proportional to 887.26, 1,330.92 and 302.23

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Solution

The fourth proportional to 887.26, 1,330.92 and 302.23 is: 453.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.26 : 1,330.92 = 302.23 : x
  2. Step 2: Convert to fraction form
    887.26/1,330.92 = 302.23/x
  3. Step 3: Cross multiply
    887.26x = 1,330.92 × 302.23
  4. Step 4: Simplify right side
    887.26x = 402,243.95
  5. Step 5: Solve for x
    x = 402,243.95/887.26
  6. Step 6: Final answer
    x = 453.36

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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.