Home / 286,958.56-396,015.60-239,131.84

Finding the Fourth Proportional to 286,958.56, 396,015.60 and 239,131.84

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Solution

The fourth proportional to 286,958.56, 396,015.60 and 239,131.84 is: 330,012.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,958.56 : 396,015.60 = 239,131.84 : x
  2. Step 2: Convert to fraction form
    286,958.56/396,015.60 = 239,131.84/x
  3. Step 3: Cross multiply
    286,958.56x = 396,015.60 × 239,131.84
  4. Step 4: Simplify right side
    286,958.56x = 94,699,939,096.70
  5. Step 5: Solve for x
    x = 94,699,939,096.70/286,958.56
  6. Step 6: Final answer
    x = 330,012.60

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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.