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Finding the Fourth Proportional to 459.17, 687.69 and 337.26

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Solution

The fourth proportional to 459.17, 687.69 and 337.26 is: 505.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.17 : 687.69 = 337.26 : x
  2. Step 2: Convert to fraction form
    459.17/687.69 = 337.26/x
  3. Step 3: Cross multiply
    459.17x = 687.69 × 337.26
  4. Step 4: Simplify right side
    459.17x = 231,932.91
  5. Step 5: Solve for x
    x = 231,932.91/459.17
  6. Step 6: Final answer
    x = 505.11

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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.