Home / 247,415.82-370,942.14-78,839.16

Finding the Fourth Proportional to 247,415.82, 370,942.14 and 78,839.16

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Solution

The fourth proportional to 247,415.82, 370,942.14 and 78,839.16 is: 118,200.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,415.82 : 370,942.14 = 78,839.16 : x
  2. Step 2: Convert to fraction form
    247,415.82/370,942.14 = 78,839.16/x
  3. Step 3: Cross multiply
    247,415.82x = 370,942.14 × 78,839.16
  4. Step 4: Simplify right side
    247,415.82x = 29,244,766,726.20
  5. Step 5: Solve for x
    x = 29,244,766,726.20/247,415.82
  6. Step 6: Final answer
    x = 118,200.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.