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Finding the Fourth Proportional to 198,950, 298,479.68 and 58,708.64

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Solution

The fourth proportional to 198,950, 298,479.68 and 58,708.64 is: 88,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,950 : 298,479.68 = 58,708.64 : x
  2. Step 2: Convert to fraction form
    198,950/298,479.68 = 58,708.64/x
  3. Step 3: Cross multiply
    198,950x = 298,479.68 × 58,708.64
  4. Step 4: Simplify right side
    198,950x = 17,523,336,080.44
  5. Step 5: Solve for x
    x = 17,523,336,080.44/198,950
  6. Step 6: Final answer
    x = 88,079.10

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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.