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Finding the Fourth Proportional to 247,393.44, 371,140.65 and 105,238.44

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Solution

The fourth proportional to 247,393.44, 371,140.65 and 105,238.44 is: 157,879.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,393.44 : 371,140.65 = 105,238.44 : x
  2. Step 2: Convert to fraction form
    247,393.44/371,140.65 = 105,238.44/x
  3. Step 3: Cross multiply
    247,393.44x = 371,140.65 × 105,238.44
  4. Step 4: Simplify right side
    247,393.44x = 39,058,263,026.59
  5. Step 5: Solve for x
    x = 39,058,263,026.59/247,393.44
  6. Step 6: Final answer
    x = 157,879.14

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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.