Home / 278,086.22-417,249.56-118,197.28

Finding the Fourth Proportional to 278,086.22, 417,249.56 and 118,197.28

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Solution

The fourth proportional to 278,086.22, 417,249.56 and 118,197.28 is: 177,347.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,086.22 : 417,249.56 = 118,197.28 : x
  2. Step 2: Convert to fraction form
    278,086.22/417,249.56 = 118,197.28/x
  3. Step 3: Cross multiply
    278,086.22x = 417,249.56 × 118,197.28
  4. Step 4: Simplify right side
    278,086.22x = 49,317,763,073.20
  5. Step 5: Solve for x
    x = 49,317,763,073.20/278,086.22
  6. Step 6: Final answer
    x = 177,347.02

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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.