Home / 198,371.09-297,462.83-76,848.54

Finding the Fourth Proportional to 198,371.09, 297,462.83 and 76,848.54

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Solution

The fourth proportional to 198,371.09, 297,462.83 and 76,848.54 is: 115,236.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,371.09 : 297,462.83 = 76,848.54 : x
  2. Step 2: Convert to fraction form
    198,371.09/297,462.83 = 76,848.54/x
  3. Step 3: Cross multiply
    198,371.09x = 297,462.83 × 76,848.54
  4. Step 4: Simplify right side
    198,371.09x = 22,859,584,363.27
  5. Step 5: Solve for x
    x = 22,859,584,363.27/198,371.09
  6. Step 6: Final answer
    x = 115,236.47

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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.