Home / 215,027.56-296,745.65-118,238.78

Finding the Fourth Proportional to 215,027.56, 296,745.65 and 118,238.78

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Solution

The fourth proportional to 215,027.56, 296,745.65 and 118,238.78 is: 163,173.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,027.56 : 296,745.65 = 118,238.78 : x
  2. Step 2: Convert to fraction form
    215,027.56/296,745.65 = 118,238.78/x
  3. Step 3: Cross multiply
    215,027.56x = 296,745.65 × 118,238.78
  4. Step 4: Simplify right side
    215,027.56x = 35,086,844,220.37
  5. Step 5: Solve for x
    x = 35,086,844,220.37/215,027.56
  6. Step 6: Final answer
    x = 163,173.71

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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.