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Finding the Fourth Proportional to 882.70, 1,324.23 and 266.34

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Solution

The fourth proportional to 882.70, 1,324.23 and 266.34 is: 399.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.70 : 1,324.23 = 266.34 : x
  2. Step 2: Convert to fraction form
    882.70/1,324.23 = 266.34/x
  3. Step 3: Cross multiply
    882.70x = 1,324.23 × 266.34
  4. Step 4: Simplify right side
    882.70x = 352,699.39
  5. Step 5: Solve for x
    x = 352,699.39/882.70
  6. Step 6: Final answer
    x = 399.57

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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.