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Finding the Fourth Proportional to 357.61, 535.38 and 203.26

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Solution

The fourth proportional to 357.61, 535.38 and 203.26 is: 304.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.61 : 535.38 = 203.26 : x
  2. Step 2: Convert to fraction form
    357.61/535.38 = 203.26/x
  3. Step 3: Cross multiply
    357.61x = 535.38 × 203.26
  4. Step 4: Simplify right side
    357.61x = 108,821.34
  5. Step 5: Solve for x
    x = 108,821.34/357.61
  6. Step 6: Final answer
    x = 304.30

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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.