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Finding the Fourth Proportional to 334.47, 461.76 and 224.31

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Solution

The fourth proportional to 334.47, 461.76 and 224.31 is: 309.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.47 : 461.76 = 224.31 : x
  2. Step 2: Convert to fraction form
    334.47/461.76 = 224.31/x
  3. Step 3: Cross multiply
    334.47x = 461.76 × 224.31
  4. Step 4: Simplify right side
    334.47x = 103,573.96
  5. Step 5: Solve for x
    x = 103,573.96/334.47
  6. Step 6: Final answer
    x = 309.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.