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Finding the Fourth Proportional to 356.60, 535.20 and 202.84

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Solution

The fourth proportional to 356.60, 535.20 and 202.84 is: 304.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.60 : 535.20 = 202.84 : x
  2. Step 2: Convert to fraction form
    356.60/535.20 = 202.84/x
  3. Step 3: Cross multiply
    356.60x = 535.20 × 202.84
  4. Step 4: Simplify right side
    356.60x = 108,559.97
  5. Step 5: Solve for x
    x = 108,559.97/356.60
  6. Step 6: Final answer
    x = 304.43

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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.