Home / 275,582.40-412,936.20-181,978.80

Finding the Fourth Proportional to 275,582.40, 412,936.20 and 181,978.80

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Solution

The fourth proportional to 275,582.40, 412,936.20 and 181,978.80 is: 272,679.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,582.40 : 412,936.20 = 181,978.80 : x
  2. Step 2: Convert to fraction form
    275,582.40/412,936.20 = 181,978.80/x
  3. Step 3: Cross multiply
    275,582.40x = 412,936.20 × 181,978.80
  4. Step 4: Simplify right side
    275,582.40x = 75,145,634,152.56
  5. Step 5: Solve for x
    x = 75,145,634,152.56/275,582.40
  6. Step 6: Final answer
    x = 272,679.37

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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.