Home / 210,836.88-290,961.78-115,343.58

Finding the Fourth Proportional to 210,836.88, 290,961.78 and 115,343.58

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Solution

The fourth proportional to 210,836.88, 290,961.78 and 115,343.58 is: 159,177.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,836.88 : 290,961.78 = 115,343.58 : x
  2. Step 2: Convert to fraction form
    210,836.88/290,961.78 = 115,343.58/x
  3. Step 3: Cross multiply
    210,836.88x = 290,961.78 × 115,343.58
  4. Step 4: Simplify right side
    210,836.88x = 33,560,573,348.37
  5. Step 5: Solve for x
    x = 33,560,573,348.37/210,836.88
  6. Step 6: Final answer
    x = 159,177.91

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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.