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Finding the Fourth Proportional to 205,310.80, 307,998.60 and 65,083.60

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Solution

The fourth proportional to 205,310.80, 307,998.60 and 65,083.60 is: 97,635.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,310.80 : 307,998.60 = 65,083.60 : x
  2. Step 2: Convert to fraction form
    205,310.80/307,998.60 = 65,083.60/x
  3. Step 3: Cross multiply
    205,310.80x = 307,998.60 × 65,083.60
  4. Step 4: Simplify right side
    205,310.80x = 20,045,657,682.96
  5. Step 5: Solve for x
    x = 20,045,657,682.96/205,310.80
  6. Step 6: Final answer
    x = 97,635.67

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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.