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Finding the Fourth Proportional to 357.23, 535.91 and 126.14

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Solution

The fourth proportional to 357.23, 535.91 and 126.14 is: 189.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.23 : 535.91 = 126.14 : x
  2. Step 2: Convert to fraction form
    357.23/535.91 = 126.14/x
  3. Step 3: Cross multiply
    357.23x = 535.91 × 126.14
  4. Step 4: Simplify right side
    357.23x = 67,596.38
  5. Step 5: Solve for x
    x = 67,596.38/357.23
  6. Step 6: Final answer
    x = 189.23

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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.