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Finding the Fourth Proportional to 357.62, 535.95 and 162.64

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Solution

The fourth proportional to 357.62, 535.95 and 162.64 is: 243.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.62 : 535.95 = 162.64 : x
  2. Step 2: Convert to fraction form
    357.62/535.95 = 162.64/x
  3. Step 3: Cross multiply
    357.62x = 535.95 × 162.64
  4. Step 4: Simplify right side
    357.62x = 87,167.58
  5. Step 5: Solve for x
    x = 87,167.58/357.62
  6. Step 6: Final answer
    x = 243.75

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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.