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Finding the Fourth Proportional to 307.27, 460.91 and 168.40

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Solution

The fourth proportional to 307.27, 460.91 and 168.40 is: 252.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307.27 : 460.91 = 168.40 : x
  2. Step 2: Convert to fraction form
    307.27/460.91 = 168.40/x
  3. Step 3: Cross multiply
    307.27x = 460.91 × 168.40
  4. Step 4: Simplify right side
    307.27x = 77,617.24
  5. Step 5: Solve for x
    x = 77,617.24/307.27
  6. Step 6: Final answer
    x = 252.60

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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.