Home / 286,288.56-395,072.10-158,961.96

Finding the Fourth Proportional to 286,288.56, 395,072.10 and 158,961.96

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Solution

The fourth proportional to 286,288.56, 395,072.10 and 158,961.96 is: 219,364.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,288.56 : 395,072.10 = 158,961.96 : x
  2. Step 2: Convert to fraction form
    286,288.56/395,072.10 = 158,961.96/x
  3. Step 3: Cross multiply
    286,288.56x = 395,072.10 × 158,961.96
  4. Step 4: Simplify right side
    286,288.56x = 62,801,435,357.32
  5. Step 5: Solve for x
    x = 62,801,435,357.32/286,288.56
  6. Step 6: Final answer
    x = 219,364.11

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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.