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Finding the Fourth Proportional to 203,745.16, 305,617.86 and 70,625.44

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Solution

The fourth proportional to 203,745.16, 305,617.86 and 70,625.44 is: 105,938.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,745.16 : 305,617.86 = 70,625.44 : x
  2. Step 2: Convert to fraction form
    203,745.16/305,617.86 = 70,625.44/x
  3. Step 3: Cross multiply
    203,745.16x = 305,617.86 × 70,625.44
  4. Step 4: Simplify right side
    203,745.16x = 21,584,395,834.36
  5. Step 5: Solve for x
    x = 21,584,395,834.36/203,745.16
  6. Step 6: Final answer
    x = 105,938.20

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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.