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Finding the Fourth Proportional to 207.06, 310.64 and 62.79

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Solution

The fourth proportional to 207.06, 310.64 and 62.79 is: 94.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207.06 : 310.64 = 62.79 : x
  2. Step 2: Convert to fraction form
    207.06/310.64 = 62.79/x
  3. Step 3: Cross multiply
    207.06x = 310.64 × 62.79
  4. Step 4: Simplify right side
    207.06x = 19,505.09
  5. Step 5: Solve for x
    x = 19,505.09/207.06
  6. Step 6: Final answer
    x = 94.20

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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.