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Finding the Fourth Proportional to 366,196.96, 548,639.34 and 129,388.60

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Solution

The fourth proportional to 366,196.96, 548,639.34 and 129,388.60 is: 193,851.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,196.96 : 548,639.34 = 129,388.60 : x
  2. Step 2: Convert to fraction form
    366,196.96/548,639.34 = 129,388.60/x
  3. Step 3: Cross multiply
    366,196.96x = 548,639.34 × 129,388.60
  4. Step 4: Simplify right side
    366,196.96x = 70,987,676,107.52
  5. Step 5: Solve for x
    x = 70,987,676,107.52/366,196.96
  6. Step 6: Final answer
    x = 193,851.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.