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Finding the Fourth Proportional to 356.61, 535.38 and 194.41

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Solution

The fourth proportional to 356.61, 535.38 and 194.41 is: 291.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.61 : 535.38 = 194.41 : x
  2. Step 2: Convert to fraction form
    356.61/535.38 = 194.41/x
  3. Step 3: Cross multiply
    356.61x = 535.38 × 194.41
  4. Step 4: Simplify right side
    356.61x = 104,079.58
  5. Step 5: Solve for x
    x = 104,079.58/356.61
  6. Step 6: Final answer
    x = 291.86

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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.