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Finding the Fourth Proportional to 286,936.40, 395,963.16 and 159,610.88

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Solution

The fourth proportional to 286,936.40, 395,963.16 and 159,610.88 is: 220,257.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,936.40 : 395,963.16 = 159,610.88 : x
  2. Step 2: Convert to fraction form
    286,936.40/395,963.16 = 159,610.88/x
  3. Step 3: Cross multiply
    286,936.40x = 395,963.16 × 159,610.88
  4. Step 4: Simplify right side
    286,936.40x = 63,200,028,415.18
  5. Step 5: Solve for x
    x = 63,200,028,415.18/286,936.40
  6. Step 6: Final answer
    x = 220,257.97

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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.