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Finding the Fourth Proportional to 268.65, 403.08 and 124.41

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Solution

The fourth proportional to 268.65, 403.08 and 124.41 is: 186.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.65 : 403.08 = 124.41 : x
  2. Step 2: Convert to fraction form
    268.65/403.08 = 124.41/x
  3. Step 3: Cross multiply
    268.65x = 403.08 × 124.41
  4. Step 4: Simplify right side
    268.65x = 50,147.18
  5. Step 5: Solve for x
    x = 50,147.18/268.65
  6. Step 6: Final answer
    x = 186.66

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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.