Home / 215,317.80-322,838.46-90,625.32

Finding the Fourth Proportional to 215,317.80, 322,838.46 and 90,625.32

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Solution

The fourth proportional to 215,317.80, 322,838.46 and 90,625.32 is: 135,879.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,317.80 : 322,838.46 = 90,625.32 : x
  2. Step 2: Convert to fraction form
    215,317.80/322,838.46 = 90,625.32/x
  3. Step 3: Cross multiply
    215,317.80x = 322,838.46 × 90,625.32
  4. Step 4: Simplify right side
    215,317.80x = 29,257,338,745.81
  5. Step 5: Solve for x
    x = 29,257,338,745.81/215,317.80
  6. Step 6: Final answer
    x = 135,879.80

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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.