Home / 381,721.16-572,611.77-101,238.41

Finding the Fourth Proportional to 381,721.16, 572,611.77 and 101,238.41

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Solution

The fourth proportional to 381,721.16, 572,611.77 and 101,238.41 is: 151,865.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,721.16 : 572,611.77 = 101,238.41 : x
  2. Step 2: Convert to fraction form
    381,721.16/572,611.77 = 101,238.41/x
  3. Step 3: Cross multiply
    381,721.16x = 572,611.77 × 101,238.41
  4. Step 4: Simplify right side
    381,721.16x = 57,970,305,142.09
  5. Step 5: Solve for x
    x = 57,970,305,142.09/381,721.16
  6. Step 6: Final answer
    x = 151,865.58

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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.