Home / 222,749.31-307,393.87-120,778.15

Finding the Fourth Proportional to 222,749.31, 307,393.87 and 120,778.15

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Solution

The fourth proportional to 222,749.31, 307,393.87 and 120,778.15 is: 166,673.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,749.31 : 307,393.87 = 120,778.15 : x
  2. Step 2: Convert to fraction form
    222,749.31/307,393.87 = 120,778.15/x
  3. Step 3: Cross multiply
    222,749.31x = 307,393.87 × 120,778.15
  4. Step 4: Simplify right side
    222,749.31x = 37,126,462,939.94
  5. Step 5: Solve for x
    x = 37,126,462,939.94/222,749.31
  6. Step 6: Final answer
    x = 166,673.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.