Home / 315,986.24-436,067.88-188,638.04

Finding the Fourth Proportional to 315,986.24, 436,067.88 and 188,638.04

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Solution

The fourth proportional to 315,986.24, 436,067.88 and 188,638.04 is: 260,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,986.24 : 436,067.88 = 188,638.04 : x
  2. Step 2: Convert to fraction form
    315,986.24/436,067.88 = 188,638.04/x
  3. Step 3: Cross multiply
    315,986.24x = 436,067.88 × 188,638.04
  4. Step 4: Simplify right side
    315,986.24x = 82,258,990,190.16
  5. Step 5: Solve for x
    x = 82,258,990,190.16/315,986.24
  6. Step 6: Final answer
    x = 260,324.60

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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.