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Finding the Fourth Proportional to 500.47, 690.77 and 334.85

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Solution

The fourth proportional to 500.47, 690.77 and 334.85 is: 462.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.47 : 690.77 = 334.85 : x
  2. Step 2: Convert to fraction form
    500.47/690.77 = 334.85/x
  3. Step 3: Cross multiply
    500.47x = 690.77 × 334.85
  4. Step 4: Simplify right side
    500.47x = 231,306.90
  5. Step 5: Solve for x
    x = 231,306.90/500.47
  6. Step 6: Final answer
    x = 462.18

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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.