Home / 286,935.40-395,961.78-159,609.88

Finding the Fourth Proportional to 286,935.40, 395,961.78 and 159,609.88

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Solution

The fourth proportional to 286,935.40, 395,961.78 and 159,609.88 is: 220,256.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,935.40 : 395,961.78 = 159,609.88 : x
  2. Step 2: Convert to fraction form
    286,935.40/395,961.78 = 159,609.88/x
  3. Step 3: Cross multiply
    286,935.40x = 395,961.78 × 159,609.88
  4. Step 4: Simplify right side
    286,935.40x = 63,199,412,190.39
  5. Step 5: Solve for x
    x = 63,199,412,190.39/286,935.40
  6. Step 6: Final answer
    x = 220,256.59

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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.