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Finding the Fourth Proportional to 340,768.98, 511,231.23 and 104,145.30

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Solution

The fourth proportional to 340,768.98, 511,231.23 and 104,145.30 is: 156,241.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,768.98 : 511,231.23 = 104,145.30 : x
  2. Step 2: Convert to fraction form
    340,768.98/511,231.23 = 104,145.30/x
  3. Step 3: Cross multiply
    340,768.98x = 511,231.23 × 104,145.30
  4. Step 4: Simplify right side
    340,768.98x = 53,242,329,817.72
  5. Step 5: Solve for x
    x = 53,242,329,817.72/340,768.98
  6. Step 6: Final answer
    x = 156,241.71

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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.