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Finding the Fourth Proportional to 357.82, 535.68 and 192.88

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Solution

The fourth proportional to 357.82, 535.68 and 192.88 is: 288.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.82 : 535.68 = 192.88 : x
  2. Step 2: Convert to fraction form
    357.82/535.68 = 192.88/x
  3. Step 3: Cross multiply
    357.82x = 535.68 × 192.88
  4. Step 4: Simplify right side
    357.82x = 103,322.63
  5. Step 5: Solve for x
    x = 103,322.63/357.82
  6. Step 6: Final answer
    x = 288.76

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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.