Home / 208,275.07-312,202.21-82,003.91

Finding the Fourth Proportional to 208,275.07, 312,202.21 and 82,003.91

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Solution

The fourth proportional to 208,275.07, 312,202.21 and 82,003.91 is: 122,923.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,275.07 : 312,202.21 = 82,003.91 : x
  2. Step 2: Convert to fraction form
    208,275.07/312,202.21 = 82,003.91/x
  3. Step 3: Cross multiply
    208,275.07x = 312,202.21 × 82,003.91
  4. Step 4: Simplify right side
    208,275.07x = 25,601,801,930.64
  5. Step 5: Solve for x
    x = 25,601,801,930.64/208,275.07
  6. Step 6: Final answer
    x = 122,923.03

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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.