Home / 260,026.20-389,924.10-119,827.80

Finding the Fourth Proportional to 260,026.20, 389,924.10 and 119,827.80

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Solution

The fourth proportional to 260,026.20, 389,924.10 and 119,827.80 is: 179,688.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,026.20 : 389,924.10 = 119,827.80 : x
  2. Step 2: Convert to fraction form
    260,026.20/389,924.10 = 119,827.80/x
  3. Step 3: Cross multiply
    260,026.20x = 389,924.10 × 119,827.80
  4. Step 4: Simplify right side
    260,026.20x = 46,723,747,069.98
  5. Step 5: Solve for x
    x = 46,723,747,069.98/260,026.20
  6. Step 6: Final answer
    x = 179,688.61

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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.