Home / 307,790.20-461,750.10-130,205.80

Finding the Fourth Proportional to 307,790.20, 461,750.10 and 130,205.80

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Solution

The fourth proportional to 307,790.20, 461,750.10 and 130,205.80 is: 195,336.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,790.20 : 461,750.10 = 130,205.80 : x
  2. Step 2: Convert to fraction form
    307,790.20/461,750.10 = 130,205.80/x
  3. Step 3: Cross multiply
    307,790.20x = 461,750.10 × 130,205.80
  4. Step 4: Simplify right side
    307,790.20x = 60,122,541,170.58
  5. Step 5: Solve for x
    x = 60,122,541,170.58/307,790.20
  6. Step 6: Final answer
    x = 195,336.11

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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.