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Finding the Fourth Proportional to 676.37, 1,014.69 and 214.19

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Solution

The fourth proportional to 676.37, 1,014.69 and 214.19 is: 321.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.37 : 1,014.69 = 214.19 : x
  2. Step 2: Convert to fraction form
    676.37/1,014.69 = 214.19/x
  3. Step 3: Cross multiply
    676.37x = 1,014.69 × 214.19
  4. Step 4: Simplify right side
    676.37x = 217,331.38
  5. Step 5: Solve for x
    x = 217,331.38/676.37
  6. Step 6: Final answer
    x = 321.32

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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.