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Finding the Fourth Proportional to 1,342.00, 2,012.78 and 367.88

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Solution

The fourth proportional to 1,342.00, 2,012.78 and 367.88 is: 551.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342.00 : 2,012.78 = 367.88 : x
  2. Step 2: Convert to fraction form
    1,342.00/2,012.78 = 367.88/x
  3. Step 3: Cross multiply
    1,342.00x = 2,012.78 × 367.88
  4. Step 4: Simplify right side
    1,342.00x = 740,452.36
  5. Step 5: Solve for x
    x = 740,452.36/1,342.00
  6. Step 6: Final answer
    x = 551.75

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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.