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Finding the Fourth Proportional to 460.58, 690.44 and 168.02

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Solution

The fourth proportional to 460.58, 690.44 and 168.02 is: 251.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.58 : 690.44 = 168.02 : x
  2. Step 2: Convert to fraction form
    460.58/690.44 = 168.02/x
  3. Step 3: Cross multiply
    460.58x = 690.44 × 168.02
  4. Step 4: Simplify right side
    460.58x = 116,003.44
  5. Step 5: Solve for x
    x = 116,003.44/460.58
  6. Step 6: Final answer
    x = 251.87

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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.