Home / 252,825.35-378,806.31-139,068.33

Finding the Fourth Proportional to 252,825.35, 378,806.31 and 139,068.33

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Solution

The fourth proportional to 252,825.35, 378,806.31 and 139,068.33 is: 208,365.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,825.35 : 378,806.31 = 139,068.33 : x
  2. Step 2: Convert to fraction form
    252,825.35/378,806.31 = 139,068.33/x
  3. Step 3: Cross multiply
    252,825.35x = 378,806.31 × 139,068.33
  4. Step 4: Simplify right side
    252,825.35x = 52,679,959,504.64
  5. Step 5: Solve for x
    x = 52,679,959,504.64/252,825.35
  6. Step 6: Final answer
    x = 208,365.03

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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.