Home / 248,974.88-343,590-135,801.68

Finding the Fourth Proportional to 248,974.88, 343,590 and 135,801.68

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Solution

The fourth proportional to 248,974.88, 343,590 and 135,801.68 is: 187,408.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,974.88 : 343,590 = 135,801.68 : x
  2. Step 2: Convert to fraction form
    248,974.88/343,590 = 135,801.68/x
  3. Step 3: Cross multiply
    248,974.88x = 343,590 × 135,801.68
  4. Step 4: Simplify right side
    248,974.88x = 46,660,099,231.20
  5. Step 5: Solve for x
    x = 46,660,099,231.20/248,974.88
  6. Step 6: Final answer
    x = 187,408.86

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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.