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Finding the Fourth Proportional to 247,995.38, 372,040.95 and 105,838.58

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Solution

The fourth proportional to 247,995.38, 372,040.95 and 105,838.58 is: 158,778.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,995.38 : 372,040.95 = 105,838.58 : x
  2. Step 2: Convert to fraction form
    247,995.38/372,040.95 = 105,838.58/x
  3. Step 3: Cross multiply
    247,995.38x = 372,040.95 × 105,838.58
  4. Step 4: Simplify right side
    247,995.38x = 39,376,285,849.85
  5. Step 5: Solve for x
    x = 39,376,285,849.85/247,995.38
  6. Step 6: Final answer
    x = 158,778.30

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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.