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Finding the Fourth Proportional to 268.99, 403.37 and 95.62

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Solution

The fourth proportional to 268.99, 403.37 and 95.62 is: 143.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.99 : 403.37 = 95.62 : x
  2. Step 2: Convert to fraction form
    268.99/403.37 = 95.62/x
  3. Step 3: Cross multiply
    268.99x = 403.37 × 95.62
  4. Step 4: Simplify right side
    268.99x = 38,570.24
  5. Step 5: Solve for x
    x = 38,570.24/268.99
  6. Step 6: Final answer
    x = 143.39

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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.