Home / 379,561.04-523,846.32-218,412.80

Finding the Fourth Proportional to 379,561.04, 523,846.32 and 218,412.80

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Solution

The fourth proportional to 379,561.04, 523,846.32 and 218,412.80 is: 301,439.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,561.04 : 523,846.32 = 218,412.80 : x
  2. Step 2: Convert to fraction form
    379,561.04/523,846.32 = 218,412.80/x
  3. Step 3: Cross multiply
    379,561.04x = 523,846.32 × 218,412.80
  4. Step 4: Simplify right side
    379,561.04x = 114,414,741,520.90
  5. Step 5: Solve for x
    x = 114,414,741,520.90/379,561.04
  6. Step 6: Final answer
    x = 301,439.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.