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Finding the Fourth Proportional to 336.72, 504.68 and 259.44

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Solution

The fourth proportional to 336.72, 504.68 and 259.44 is: 388.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.72 : 504.68 = 259.44 : x
  2. Step 2: Convert to fraction form
    336.72/504.68 = 259.44/x
  3. Step 3: Cross multiply
    336.72x = 504.68 × 259.44
  4. Step 4: Simplify right side
    336.72x = 130,934.18
  5. Step 5: Solve for x
    x = 130,934.18/336.72
  6. Step 6: Final answer
    x = 388.85

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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.