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Finding the Fourth Proportional to 1,343.03, 2,014.31 and 368.90

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Solution

The fourth proportional to 1,343.03, 2,014.31 and 368.90 is: 553.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.03 : 2,014.31 = 368.90 : x
  2. Step 2: Convert to fraction form
    1,343.03/2,014.31 = 368.90/x
  3. Step 3: Cross multiply
    1,343.03x = 2,014.31 × 368.90
  4. Step 4: Simplify right side
    1,343.03x = 743,078.96
  5. Step 5: Solve for x
    x = 743,078.96/1,343.03
  6. Step 6: Final answer
    x = 553.29

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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.