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Finding the Fourth Proportional to 275,442.60, 412,580.70 and 245,893.80

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Solution

The fourth proportional to 275,442.60, 412,580.70 and 245,893.80 is: 368,320.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,442.60 : 412,580.70 = 245,893.80 : x
  2. Step 2: Convert to fraction form
    275,442.60/412,580.70 = 245,893.80/x
  3. Step 3: Cross multiply
    275,442.60x = 412,580.70 × 245,893.80
  4. Step 4: Simplify right side
    275,442.60x = 101,451,036,129.66
  5. Step 5: Solve for x
    x = 101,451,036,129.66/275,442.60
  6. Step 6: Final answer
    x = 368,320.06

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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.