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Finding the Fourth Proportional to 340,808.85, 511,213.28 and 104,149.53

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Solution

The fourth proportional to 340,808.85, 511,213.28 and 104,149.53 is: 156,224.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,808.85 : 511,213.28 = 104,149.53 : x
  2. Step 2: Convert to fraction form
    340,808.85/511,213.28 = 104,149.53/x
  3. Step 3: Cross multiply
    340,808.85x = 511,213.28 × 104,149.53
  4. Step 4: Simplify right side
    340,808.85x = 53,242,622,321.01
  5. Step 5: Solve for x
    x = 53,242,622,321.01/340,808.85
  6. Step 6: Final answer
    x = 156,224.30

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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.