Home / 324,733.68-487,149-100,075.44

Finding the Fourth Proportional to 324,733.68, 487,149 and 100,075.44

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Solution

The fourth proportional to 324,733.68, 487,149 and 100,075.44 is: 150,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,733.68 : 487,149 = 100,075.44 : x
  2. Step 2: Convert to fraction form
    324,733.68/487,149 = 100,075.44/x
  3. Step 3: Cross multiply
    324,733.68x = 487,149 × 100,075.44
  4. Step 4: Simplify right side
    324,733.68x = 48,751,650,520.56
  5. Step 5: Solve for x
    x = 48,751,650,520.56/324,733.68
  6. Step 6: Final answer
    x = 150,128.10

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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.