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Finding the Fourth Proportional to 357.85, 535.89 and 174.65

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Solution

The fourth proportional to 357.85, 535.89 and 174.65 is: 261.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.85 : 535.89 = 174.65 : x
  2. Step 2: Convert to fraction form
    357.85/535.89 = 174.65/x
  3. Step 3: Cross multiply
    357.85x = 535.89 × 174.65
  4. Step 4: Simplify right side
    357.85x = 93,593.19
  5. Step 5: Solve for x
    x = 93,593.19/357.85
  6. Step 6: Final answer
    x = 261.55

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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.