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Finding the Fourth Proportional to 263.23, 363.15 and 152.66

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Solution

The fourth proportional to 263.23, 363.15 and 152.66 is: 210.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.23 : 363.15 = 152.66 : x
  2. Step 2: Convert to fraction form
    263.23/363.15 = 152.66/x
  3. Step 3: Cross multiply
    263.23x = 363.15 × 152.66
  4. Step 4: Simplify right side
    263.23x = 55,439.39
  5. Step 5: Solve for x
    x = 55,439.39/263.23
  6. Step 6: Final answer
    x = 210.61

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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.