Home / 260,147.00-390,257.71-80,247.62

Finding the Fourth Proportional to 260,147.00, 390,257.71 and 80,247.62

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Solution

The fourth proportional to 260,147.00, 390,257.71 and 80,247.62 is: 120,382.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,147.00 : 390,257.71 = 80,247.62 : x
  2. Step 2: Convert to fraction form
    260,147.00/390,257.71 = 80,247.62/x
  3. Step 3: Cross multiply
    260,147.00x = 390,257.71 × 80,247.62
  4. Step 4: Simplify right side
    260,147.00x = 31,317,253,189.18
  5. Step 5: Solve for x
    x = 31,317,253,189.18/260,147.00
  6. Step 6: Final answer
    x = 120,382.91

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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.