Home / 198,731.60-298,097.40-50,987.60

Finding the Fourth Proportional to 198,731.60, 298,097.40 and 50,987.60

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Solution

The fourth proportional to 198,731.60, 298,097.40 and 50,987.60 is: 76,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,731.60 : 298,097.40 = 50,987.60 : x
  2. Step 2: Convert to fraction form
    198,731.60/298,097.40 = 50,987.60/x
  3. Step 3: Cross multiply
    198,731.60x = 298,097.40 × 50,987.60
  4. Step 4: Simplify right side
    198,731.60x = 15,199,270,992.24
  5. Step 5: Solve for x
    x = 15,199,270,992.24/198,731.60
  6. Step 6: Final answer
    x = 76,481.40

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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.