Home / 329,421.08-494,131.62-80,100.92

Finding the Fourth Proportional to 329,421.08, 494,131.62 and 80,100.92

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Solution

The fourth proportional to 329,421.08, 494,131.62 and 80,100.92 is: 120,151.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,421.08 : 494,131.62 = 80,100.92 : x
  2. Step 2: Convert to fraction form
    329,421.08/494,131.62 = 80,100.92/x
  3. Step 3: Cross multiply
    329,421.08x = 494,131.62 × 80,100.92
  4. Step 4: Simplify right side
    329,421.08x = 39,580,397,363.09
  5. Step 5: Solve for x
    x = 39,580,397,363.09/329,421.08
  6. Step 6: Final answer
    x = 120,151.38

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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.