Home / 198,878.22-298,307.61-74,209.50

Finding the Fourth Proportional to 198,878.22, 298,307.61 and 74,209.50

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Solution

The fourth proportional to 198,878.22, 298,307.61 and 74,209.50 is: 111,310.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,878.22 : 298,307.61 = 74,209.50 : x
  2. Step 2: Convert to fraction form
    198,878.22/298,307.61 = 74,209.50/x
  3. Step 3: Cross multiply
    198,878.22x = 298,307.61 × 74,209.50
  4. Step 4: Simplify right side
    198,878.22x = 22,137,258,584.30
  5. Step 5: Solve for x
    x = 22,137,258,584.30/198,878.22
  6. Step 6: Final answer
    x = 111,310.62

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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.