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Finding the Fourth Proportional to 247.52, 370.82 and 207.12

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Solution

The fourth proportional to 247.52, 370.82 and 207.12 is: 310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.52 : 370.82 = 207.12 : x
  2. Step 2: Convert to fraction form
    247.52/370.82 = 207.12/x
  3. Step 3: Cross multiply
    247.52x = 370.82 × 207.12
  4. Step 4: Simplify right side
    247.52x = 76,804.24
  5. Step 5: Solve for x
    x = 76,804.24/247.52
  6. Step 6: Final answer
    x = 310.30

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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.