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Finding the Fourth Proportional to 275,436.60, 412,571.70 and 245,887.80

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Solution

The fourth proportional to 275,436.60, 412,571.70 and 245,887.80 is: 368,311.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,436.60 : 412,571.70 = 245,887.80 : x
  2. Step 2: Convert to fraction form
    275,436.60/412,571.70 = 245,887.80/x
  3. Step 3: Cross multiply
    275,436.60x = 412,571.70 × 245,887.80
  4. Step 4: Simplify right side
    275,436.60x = 101,446,347,655.26
  5. Step 5: Solve for x
    x = 101,446,347,655.26/275,436.60
  6. Step 6: Final answer
    x = 368,311.07

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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.