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Finding the Fourth Proportional to 286,776.46, 395,749.11 and 159,450.94

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Solution

The fourth proportional to 286,776.46, 395,749.11 and 159,450.94 is: 220,040.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,776.46 : 395,749.11 = 159,450.94 : x
  2. Step 2: Convert to fraction form
    286,776.46/395,749.11 = 159,450.94/x
  3. Step 3: Cross multiply
    286,776.46x = 395,749.11 × 159,450.94
  4. Step 4: Simplify right side
    286,776.46x = 63,102,567,593.66
  5. Step 5: Solve for x
    x = 63,102,567,593.66/286,776.46
  6. Step 6: Final answer
    x = 220,040.96

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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.