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Finding the Fourth Proportional to 307.25, 460.64 and 133.91

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Solution

The fourth proportional to 307.25, 460.64 and 133.91 is: 200.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    307.25 : 460.64 = 133.91 : x
  2. Step 2: Convert to fraction form
    307.25/460.64 = 133.91/x
  3. Step 3: Cross multiply
    307.25x = 460.64 × 133.91
  4. Step 4: Simplify right side
    307.25x = 61,682.33
  5. Step 5: Solve for x
    x = 61,682.33/307.25
  6. Step 6: Final answer
    x = 200.76

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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.