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Finding the Fourth Proportional to 275,978.87, 414,128.91 and 116,043.21

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Solution

The fourth proportional to 275,978.87, 414,128.91 and 116,043.21 is: 174,132.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,978.87 : 414,128.91 = 116,043.21 : x
  2. Step 2: Convert to fraction form
    275,978.87/414,128.91 = 116,043.21/x
  3. Step 3: Cross multiply
    275,978.87x = 414,128.91 × 116,043.21
  4. Step 4: Simplify right side
    275,978.87x = 48,056,848,070.20
  5. Step 5: Solve for x
    x = 48,056,848,070.20/275,978.87
  6. Step 6: Final answer
    x = 174,132.35

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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.