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Finding the Fourth Proportional to 263.35, 363.40 and 151.35

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Solution

The fourth proportional to 263.35, 363.40 and 151.35 is: 208.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.35 : 363.40 = 151.35 : x
  2. Step 2: Convert to fraction form
    263.35/363.40 = 151.35/x
  3. Step 3: Cross multiply
    263.35x = 363.40 × 151.35
  4. Step 4: Simplify right side
    263.35x = 55,000.59
  5. Step 5: Solve for x
    x = 55,000.59/263.35
  6. Step 6: Final answer
    x = 208.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.