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Finding the Fourth Proportional to 676.19, 1,014.29 and 214.02

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Solution

The fourth proportional to 676.19, 1,014.29 and 214.02 is: 321.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.19 : 1,014.29 = 214.02 : x
  2. Step 2: Convert to fraction form
    676.19/1,014.29 = 214.02/x
  3. Step 3: Cross multiply
    676.19x = 1,014.29 × 214.02
  4. Step 4: Simplify right side
    676.19x = 217,078.08
  5. Step 5: Solve for x
    x = 217,078.08/676.19
  6. Step 6: Final answer
    x = 321.03

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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.