Home / 297,986.58-446,987.97-87,631.26

Finding the Fourth Proportional to 297,986.58, 446,987.97 and 87,631.26

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Solution

The fourth proportional to 297,986.58, 446,987.97 and 87,631.26 is: 131,449.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,986.58 : 446,987.97 = 87,631.26 : x
  2. Step 2: Convert to fraction form
    297,986.58/446,987.97 = 87,631.26/x
  3. Step 3: Cross multiply
    297,986.58x = 446,987.97 × 87,631.26
  4. Step 4: Simplify right side
    297,986.58x = 39,170,119,015.94
  5. Step 5: Solve for x
    x = 39,170,119,015.94/297,986.58
  6. Step 6: Final answer
    x = 131,449.27

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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.