Home / 379,361.91-523,513.20-209,611.83

Finding the Fourth Proportional to 379,361.91, 523,513.20 and 209,611.83

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Solution

The fourth proportional to 379,361.91, 523,513.20 and 209,611.83 is: 289,260.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,361.91 : 523,513.20 = 209,611.83 : x
  2. Step 2: Convert to fraction form
    379,361.91/523,513.20 = 209,611.83/x
  3. Step 3: Cross multiply
    379,361.91x = 523,513.20 × 209,611.83
  4. Step 4: Simplify right side
    379,361.91x = 109,734,559,881.16
  5. Step 5: Solve for x
    x = 109,734,559,881.16/379,361.91
  6. Step 6: Final answer
    x = 289,260.88

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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.