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Finding the Fourth Proportional to 137.36, 206.14 and 65.24

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Solution

The fourth proportional to 137.36, 206.14 and 65.24 is: 97.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    137.36 : 206.14 = 65.24 : x
  2. Step 2: Convert to fraction form
    137.36/206.14 = 65.24/x
  3. Step 3: Cross multiply
    137.36x = 206.14 × 65.24
  4. Step 4: Simplify right side
    137.36x = 13,448.57
  5. Step 5: Solve for x
    x = 13,448.57/137.36
  6. Step 6: Final answer
    x = 97.91

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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.