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Finding the Fourth Proportional to 198,559.89, 297,876.74 and 65,449.55

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Solution

The fourth proportional to 198,559.89, 297,876.74 and 65,449.55 is: 98,186.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,559.89 : 297,876.74 = 65,449.55 : x
  2. Step 2: Convert to fraction form
    198,559.89/297,876.74 = 65,449.55/x
  3. Step 3: Cross multiply
    198,559.89x = 297,876.74 × 65,449.55
  4. Step 4: Simplify right side
    198,559.89x = 19,495,899,005.91
  5. Step 5: Solve for x
    x = 19,495,899,005.91/198,559.89
  6. Step 6: Final answer
    x = 98,186.49

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1.5x scale

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.