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Finding the Fourth Proportional to 334.30, 500.91 and 265.45

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Solution

The fourth proportional to 334.30, 500.91 and 265.45 is: 397.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.30 : 500.91 = 265.45 : x
  2. Step 2: Convert to fraction form
    334.30/500.91 = 265.45/x
  3. Step 3: Cross multiply
    334.30x = 500.91 × 265.45
  4. Step 4: Simplify right side
    334.30x = 132,966.56
  5. Step 5: Solve for x
    x = 132,966.56/334.30
  6. Step 6: Final answer
    x = 397.75

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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.