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Finding the Fourth Proportional to 259,504.83, 389,070.42 and 159,458.31

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Solution

The fourth proportional to 259,504.83, 389,070.42 and 159,458.31 is: 239,072.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,504.83 : 389,070.42 = 159,458.31 : x
  2. Step 2: Convert to fraction form
    259,504.83/389,070.42 = 159,458.31/x
  3. Step 3: Cross multiply
    259,504.83x = 389,070.42 × 159,458.31
  4. Step 4: Simplify right side
    259,504.83x = 62,040,511,644.19
  5. Step 5: Solve for x
    x = 62,040,511,644.19/259,504.83
  6. Step 6: Final answer
    x = 239,072.67

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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.