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Finding the Fourth Proportional to 334.56, 500.86 and 253.72

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Solution

The fourth proportional to 334.56, 500.86 and 253.72 is: 379.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.56 : 500.86 = 253.72 : x
  2. Step 2: Convert to fraction form
    334.56/500.86 = 253.72/x
  3. Step 3: Cross multiply
    334.56x = 500.86 × 253.72
  4. Step 4: Simplify right side
    334.56x = 127,078.20
  5. Step 5: Solve for x
    x = 127,078.20/334.56
  6. Step 6: Final answer
    x = 379.84

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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.