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Finding the Fourth Proportional to 190,745.90, 286,129.78 and 50,500.88

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Solution

The fourth proportional to 190,745.90, 286,129.78 and 50,500.88 is: 75,754.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,745.90 : 286,129.78 = 50,500.88 : x
  2. Step 2: Convert to fraction form
    190,745.90/286,129.78 = 50,500.88/x
  3. Step 3: Cross multiply
    190,745.90x = 286,129.78 × 50,500.88
  4. Step 4: Simplify right side
    190,745.90x = 14,449,804,127.31
  5. Step 5: Solve for x
    x = 14,449,804,127.31/190,745.90
  6. Step 6: Final answer
    x = 75,754.21

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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.