Home / 278,232.91-383,961.43-157,371.59

Finding the Fourth Proportional to 278,232.91, 383,961.43 and 157,371.59

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Solution

The fourth proportional to 278,232.91, 383,961.43 and 157,371.59 is: 217,172.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,232.91 : 383,961.43 = 157,371.59 : x
  2. Step 2: Convert to fraction form
    278,232.91/383,961.43 = 157,371.59/x
  3. Step 3: Cross multiply
    278,232.91x = 383,961.43 × 157,371.59
  4. Step 4: Simplify right side
    278,232.91x = 60,424,621,894.39
  5. Step 5: Solve for x
    x = 60,424,621,894.39/278,232.91
  6. Step 6: Final answer
    x = 217,172.81

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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.