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Finding the Fourth Proportional to 263.06, 363.08 and 210.95

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Solution

The fourth proportional to 263.06, 363.08 and 210.95 is: 291.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.06 : 363.08 = 210.95 : x
  2. Step 2: Convert to fraction form
    263.06/363.08 = 210.95/x
  3. Step 3: Cross multiply
    263.06x = 363.08 × 210.95
  4. Step 4: Simplify right side
    263.06x = 76,588.86
  5. Step 5: Solve for x
    x = 76,588.86/263.06
  6. Step 6: Final answer
    x = 291.15

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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.