Home / 260,811.60-390,998.70-136,152.60

Finding the Fourth Proportional to 260,811.60, 390,998.70 and 136,152.60

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Solution

The fourth proportional to 260,811.60, 390,998.70 and 136,152.60 is: 204,114.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,811.60 : 390,998.70 = 136,152.60 : x
  2. Step 2: Convert to fraction form
    260,811.60/390,998.70 = 136,152.60/x
  3. Step 3: Cross multiply
    260,811.60x = 390,998.70 × 136,152.60
  4. Step 4: Simplify right side
    260,811.60x = 53,235,489,601.62
  5. Step 5: Solve for x
    x = 53,235,489,601.62/260,811.60
  6. Step 6: Final answer
    x = 204,114.73

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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.