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Finding the Fourth Proportional to 340,709.09, 511,112.84 and 104,021.01

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Solution

The fourth proportional to 340,709.09, 511,112.84 and 104,021.01 is: 156,046.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,709.09 : 511,112.84 = 104,021.01 : x
  2. Step 2: Convert to fraction form
    340,709.09/511,112.84 = 104,021.01/x
  3. Step 3: Cross multiply
    340,709.09x = 511,112.84 × 104,021.01
  4. Step 4: Simplify right side
    340,709.09x = 53,166,473,320.66
  5. Step 5: Solve for x
    x = 53,166,473,320.66/340,709.09
  6. Step 6: Final answer
    x = 156,046.54

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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.