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Finding the Fourth Proportional to 198,555.50, 297,870.15 and 65,445.11

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Solution

The fourth proportional to 198,555.50, 297,870.15 and 65,445.11 is: 98,179.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,555.50 : 297,870.15 = 65,445.11 : x
  2. Step 2: Convert to fraction form
    198,555.50/297,870.15 = 65,445.11/x
  3. Step 3: Cross multiply
    198,555.50x = 297,870.15 × 65,445.11
  4. Step 4: Simplify right side
    198,555.50x = 19,494,144,732.47
  5. Step 5: Solve for x
    x = 19,494,144,732.47/198,555.50
  6. Step 6: Final answer
    x = 98,179.83

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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.