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Finding the Fourth Proportional to 250,745.40, 376,135.74 and 100,986.30

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Solution

The fourth proportional to 250,745.40, 376,135.74 and 100,986.30 is: 151,486.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,745.40 : 376,135.74 = 100,986.30 : x
  2. Step 2: Convert to fraction form
    250,745.40/376,135.74 = 100,986.30/x
  3. Step 3: Cross multiply
    250,745.40x = 376,135.74 × 100,986.30
  4. Step 4: Simplify right side
    250,745.40x = 37,984,556,680.36
  5. Step 5: Solve for x
    x = 37,984,556,680.36/250,745.40
  6. Step 6: Final answer
    x = 151,486.55

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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.