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Finding the Fourth Proportional to 357.72, 536.78 and 175.13

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Solution

The fourth proportional to 357.72, 536.78 and 175.13 is: 262.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.72 : 536.78 = 175.13 : x
  2. Step 2: Convert to fraction form
    357.72/536.78 = 175.13/x
  3. Step 3: Cross multiply
    357.72x = 536.78 × 175.13
  4. Step 4: Simplify right side
    357.72x = 94,007.30
  5. Step 5: Solve for x
    x = 94,007.30/357.72
  6. Step 6: Final answer
    x = 262.79

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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.