Home / 381,146.07-525,912.03-219,942.30

Finding the Fourth Proportional to 381,146.07, 525,912.03 and 219,942.30

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Solution

The fourth proportional to 381,146.07, 525,912.03 and 219,942.30 is: 303,480.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,146.07 : 525,912.03 = 219,942.30 : x
  2. Step 2: Convert to fraction form
    381,146.07/525,912.03 = 219,942.30/x
  3. Step 3: Cross multiply
    381,146.07x = 525,912.03 × 219,942.30
  4. Step 4: Simplify right side
    381,146.07x = 115,670,301,475.87
  5. Step 5: Solve for x
    x = 115,670,301,475.87/381,146.07
  6. Step 6: Final answer
    x = 303,480.24

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1.5x scale

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.