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Finding the Fourth Proportional to 334.32, 503.39 and 243.64

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Solution

The fourth proportional to 334.32, 503.39 and 243.64 is: 366.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.32 : 503.39 = 243.64 : x
  2. Step 2: Convert to fraction form
    334.32/503.39 = 243.64/x
  3. Step 3: Cross multiply
    334.32x = 503.39 × 243.64
  4. Step 4: Simplify right side
    334.32x = 122,645.94
  5. Step 5: Solve for x
    x = 122,645.94/334.32
  6. Step 6: Final answer
    x = 366.85

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.