Home / 303,847.40-419,319.78-190,732.52

Finding the Fourth Proportional to 303,847.40, 419,319.78 and 190,732.52

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Solution

The fourth proportional to 303,847.40, 419,319.78 and 190,732.52 is: 263,217.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,847.40 : 419,319.78 = 190,732.52 : x
  2. Step 2: Convert to fraction form
    303,847.40/419,319.78 = 190,732.52/x
  3. Step 3: Cross multiply
    303,847.40x = 419,319.78 × 190,732.52
  4. Step 4: Simplify right side
    303,847.40x = 79,977,918,325.25
  5. Step 5: Solve for x
    x = 79,977,918,325.25/303,847.40
  6. Step 6: Final answer
    x = 263,217.39

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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.