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Finding the Fourth Proportional to 198,680.40, 298,020.60 and 177,029.10

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Solution

The fourth proportional to 198,680.40, 298,020.60 and 177,029.10 is: 265,543.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,680.40 : 298,020.60 = 177,029.10 : x
  2. Step 2: Convert to fraction form
    198,680.40/298,020.60 = 177,029.10/x
  3. Step 3: Cross multiply
    198,680.40x = 298,020.60 × 177,029.10
  4. Step 4: Simplify right side
    198,680.40x = 52,758,318,599.46
  5. Step 5: Solve for x
    x = 52,758,318,599.46/198,680.40
  6. Step 6: Final answer
    x = 265,543.65

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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.