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Finding the Fourth Proportional to 351.08, 483.98 and 268

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Solution

The fourth proportional to 351.08, 483.98 and 268 is: 369.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.08 : 483.98 = 268 : x
  2. Step 2: Convert to fraction form
    351.08/483.98 = 268/x
  3. Step 3: Cross multiply
    351.08x = 483.98 × 268
  4. Step 4: Simplify right side
    351.08x = 129,706.64
  5. Step 5: Solve for x
    x = 129,706.64/351.08
  6. Step 6: Final answer
    x = 369.45

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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.