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Finding the Fourth Proportional to 198,680.40, 297,941.40 and 65,523.60

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Solution

The fourth proportional to 198,680.40, 297,941.40 and 65,523.60 is: 98,259.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,680.40 : 297,941.40 = 65,523.60 : x
  2. Step 2: Convert to fraction form
    198,680.40/297,941.40 = 65,523.60/x
  3. Step 3: Cross multiply
    198,680.40x = 297,941.40 × 65,523.60
  4. Step 4: Simplify right side
    198,680.40x = 19,522,193,117.04
  5. Step 5: Solve for x
    x = 19,522,193,117.04/198,680.40
  6. Step 6: Final answer
    x = 98,259.28

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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.