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Finding the Fourth Proportional to 882.76, 1,323.78 and 334.66

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Solution

The fourth proportional to 882.76, 1,323.78 and 334.66 is: 501.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.76 : 1,323.78 = 334.66 : x
  2. Step 2: Convert to fraction form
    882.76/1,323.78 = 334.66/x
  3. Step 3: Cross multiply
    882.76x = 1,323.78 × 334.66
  4. Step 4: Simplify right side
    882.76x = 443,016.21
  5. Step 5: Solve for x
    x = 443,016.21/882.76
  6. Step 6: Final answer
    x = 501.85

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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.