Home / 198,913.78-298,370.67-58,661.47

Finding the Fourth Proportional to 198,913.78, 298,370.67 and 58,661.47

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Solution

The fourth proportional to 198,913.78, 298,370.67 and 58,661.47 is: 87,992.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,913.78 : 298,370.67 = 58,661.47 : x
  2. Step 2: Convert to fraction form
    198,913.78/298,370.67 = 58,661.47/x
  3. Step 3: Cross multiply
    198,913.78x = 298,370.67 × 58,661.47
  4. Step 4: Simplify right side
    198,913.78x = 17,502,862,107.08
  5. Step 5: Solve for x
    x = 17,502,862,107.08/198,913.78
  6. Step 6: Final answer
    x = 87,992.21

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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.