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Finding the Fourth Proportional to 263.00, 396.34 and 247.61

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Solution

The fourth proportional to 263.00, 396.34 and 247.61 is: 373.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.00 : 396.34 = 247.61 : x
  2. Step 2: Convert to fraction form
    263.00/396.34 = 247.61/x
  3. Step 3: Cross multiply
    263.00x = 396.34 × 247.61
  4. Step 4: Simplify right side
    263.00x = 98,138.12
  5. Step 5: Solve for x
    x = 98,138.12/263.00
  6. Step 6: Final answer
    x = 373.15

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.