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Finding the Fourth Proportional to 500.81, 690.95 and 334.96

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Solution

The fourth proportional to 500.81, 690.95 and 334.96 is: 462.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.81 : 690.95 = 334.96 : x
  2. Step 2: Convert to fraction form
    500.81/690.95 = 334.96/x
  3. Step 3: Cross multiply
    500.81x = 690.95 × 334.96
  4. Step 4: Simplify right side
    500.81x = 231,439.72
  5. Step 5: Solve for x
    x = 231,439.72/500.81
  6. Step 6: Final answer
    x = 462.14

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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.