Home / 278,342.34-417,588.84-198,481.20

Finding the Fourth Proportional to 278,342.34, 417,588.84 and 198,481.20

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Solution

The fourth proportional to 278,342.34, 417,588.84 and 198,481.20 is: 297,775.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,342.34 : 417,588.84 = 198,481.20 : x
  2. Step 2: Convert to fraction form
    278,342.34/417,588.84 = 198,481.20/x
  3. Step 3: Cross multiply
    278,342.34x = 417,588.84 × 198,481.20
  4. Step 4: Simplify right side
    278,342.34x = 82,883,534,069.81
  5. Step 5: Solve for x
    x = 82,883,534,069.81/278,342.34
  6. Step 6: Final answer
    x = 297,775.52

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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.