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Finding the Fourth Proportional to 208,786.00, 313,025.65 and 66,549.39

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Solution

The fourth proportional to 208,786.00, 313,025.65 and 66,549.39 is: 99,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,786.00 : 313,025.65 = 66,549.39 : x
  2. Step 2: Convert to fraction form
    208,786.00/313,025.65 = 66,549.39/x
  3. Step 3: Cross multiply
    208,786.00x = 313,025.65 × 66,549.39
  4. Step 4: Simplify right side
    208,786.00x = 20,831,664,163.98
  5. Step 5: Solve for x
    x = 20,831,664,163.98/208,786.00
  6. Step 6: Final answer
    x = 99,775.20

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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.