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Finding the Fourth Proportional to 662.06, 992.75 and 353.85

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Solution

The fourth proportional to 662.06, 992.75 and 353.85 is: 530.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.06 : 992.75 = 353.85 : x
  2. Step 2: Convert to fraction form
    662.06/992.75 = 353.85/x
  3. Step 3: Cross multiply
    662.06x = 992.75 × 353.85
  4. Step 4: Simplify right side
    662.06x = 351,282.82
  5. Step 5: Solve for x
    x = 351,282.82/662.06
  6. Step 6: Final answer
    x = 530.59

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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.