Home / 208,323.54-312,524.19-68,180.58

Finding the Fourth Proportional to 208,323.54, 312,524.19 and 68,180.58

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Solution

The fourth proportional to 208,323.54, 312,524.19 and 68,180.58 is: 102,283.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,323.54 : 312,524.19 = 68,180.58 : x
  2. Step 2: Convert to fraction form
    208,323.54/312,524.19 = 68,180.58/x
  3. Step 3: Cross multiply
    208,323.54x = 312,524.19 × 68,180.58
  4. Step 4: Simplify right side
    208,323.54x = 21,308,080,538.23
  5. Step 5: Solve for x
    x = 21,308,080,538.23/208,323.54
  6. Step 6: Final answer
    x = 102,283.59

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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.