Home / 208,278.43-312,207.30-82,007.30

Finding the Fourth Proportional to 208,278.43, 312,207.30 and 82,007.30

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Solution

The fourth proportional to 208,278.43, 312,207.30 and 82,007.30 is: 122,928.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,278.43 : 312,207.30 = 82,007.30 : x
  2. Step 2: Convert to fraction form
    208,278.43/312,207.30 = 82,007.30/x
  3. Step 3: Cross multiply
    208,278.43x = 312,207.30 × 82,007.30
  4. Step 4: Simplify right side
    208,278.43x = 25,603,278,493.81
  5. Step 5: Solve for x
    x = 25,603,278,493.81/208,278.43
  6. Step 6: Final answer
    x = 122,928.13

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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.