Home / 490,928-736,308.48-135,858.84

Finding the Fourth Proportional to 490,928, 736,308.48 and 135,858.84

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Solution

The fourth proportional to 490,928, 736,308.48 and 135,858.84 is: 203,765.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,928 : 736,308.48 = 135,858.84 : x
  2. Step 2: Convert to fraction form
    490,928/736,308.48 = 135,858.84/x
  3. Step 3: Cross multiply
    490,928x = 736,308.48 × 135,858.84
  4. Step 4: Simplify right side
    490,928x = 100,034,015,974.96
  5. Step 5: Solve for x
    x = 100,034,015,974.96/490,928
  6. Step 6: Final answer
    x = 203,765.15

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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.