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Finding the Fourth Proportional to 460.72, 691.08 and 114.06

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Solution

The fourth proportional to 460.72, 691.08 and 114.06 is: 171.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    460.72 : 691.08 = 114.06 : x
  2. Step 2: Convert to fraction form
    460.72/691.08 = 114.06/x
  3. Step 3: Cross multiply
    460.72x = 691.08 × 114.06
  4. Step 4: Simplify right side
    460.72x = 78,824.58
  5. Step 5: Solve for x
    x = 78,824.58/460.72
  6. Step 6: Final answer
    x = 171.09

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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.