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Finding the Fourth Proportional to 340,768.48, 511,230.48 and 104,144.80

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Solution

The fourth proportional to 340,768.48, 511,230.48 and 104,144.80 is: 156,240.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,768.48 : 511,230.48 = 104,144.80 : x
  2. Step 2: Convert to fraction form
    340,768.48/511,230.48 = 104,144.80/x
  3. Step 3: Cross multiply
    340,768.48x = 511,230.48 × 104,144.80
  4. Step 4: Simplify right side
    340,768.48x = 53,241,996,093.50
  5. Step 5: Solve for x
    x = 53,241,996,093.50/340,768.48
  6. Step 6: Final answer
    x = 156,240.96

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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.