Home / 286,042.68-394,738.88-158,738.76

Finding the Fourth Proportional to 286,042.68, 394,738.88 and 158,738.76

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Solution

The fourth proportional to 286,042.68, 394,738.88 and 158,738.76 is: 219,059.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,042.68 : 394,738.88 = 158,738.76 : x
  2. Step 2: Convert to fraction form
    286,042.68/394,738.88 = 158,738.76/x
  3. Step 3: Cross multiply
    286,042.68x = 394,738.88 × 158,738.76
  4. Step 4: Simplify right side
    286,042.68x = 62,660,360,334.99
  5. Step 5: Solve for x
    x = 62,660,360,334.99/286,042.68
  6. Step 6: Final answer
    x = 219,059.48

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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.