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Finding the Fourth Proportional to 198,243.45, 298,850.72 and 185,045.72

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Solution

The fourth proportional to 198,243.45, 298,850.72 and 185,045.72 is: 278,955.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,243.45 : 298,850.72 = 185,045.72 : x
  2. Step 2: Convert to fraction form
    198,243.45/298,850.72 = 185,045.72/x
  3. Step 3: Cross multiply
    198,243.45x = 298,850.72 × 185,045.72
  4. Step 4: Simplify right side
    198,243.45x = 55,301,044,235.44
  5. Step 5: Solve for x
    x = 55,301,044,235.44/198,243.45
  6. Step 6: Final answer
    x = 278,955.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.