Home / 260,022.20-389,918.10-119,823.80

Finding the Fourth Proportional to 260,022.20, 389,918.10 and 119,823.80

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Solution

The fourth proportional to 260,022.20, 389,918.10 and 119,823.80 is: 179,682.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,022.20 : 389,918.10 = 119,823.80 : x
  2. Step 2: Convert to fraction form
    260,022.20/389,918.10 = 119,823.80/x
  3. Step 3: Cross multiply
    260,022.20x = 389,918.10 × 119,823.80
  4. Step 4: Simplify right side
    260,022.20x = 46,721,468,430.78
  5. Step 5: Solve for x
    x = 46,721,468,430.78/260,022.20
  6. Step 6: Final answer
    x = 179,682.61

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1.5x scale

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.