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Finding the Fourth Proportional to 306.60, 460.14 and 210.68

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Solution

The fourth proportional to 306.60, 460.14 and 210.68 is: 316.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    306.60 : 460.14 = 210.68 : x
  2. Step 2: Convert to fraction form
    306.60/460.14 = 210.68/x
  3. Step 3: Cross multiply
    306.60x = 460.14 × 210.68
  4. Step 4: Simplify right side
    306.60x = 96,942.30
  5. Step 5: Solve for x
    x = 96,942.30/306.60
  6. Step 6: Final answer
    x = 316.18

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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.