Home / 259,766.40-389,433.60-110,121.60

Finding the Fourth Proportional to 259,766.40, 389,433.60 and 110,121.60

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Solution

The fourth proportional to 259,766.40, 389,433.60 and 110,121.60 is: 165,090.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,766.40 : 389,433.60 = 110,121.60 : x
  2. Step 2: Convert to fraction form
    259,766.40/389,433.60 = 110,121.60/x
  3. Step 3: Cross multiply
    259,766.40x = 389,433.60 × 110,121.60
  4. Step 4: Simplify right side
    259,766.40x = 42,885,051,125.76
  5. Step 5: Solve for x
    x = 42,885,051,125.76/259,766.40
  6. Step 6: Final answer
    x = 165,090.83

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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.