Finding the Fourth Proportional to 225,924.21, 338,649.86 and 76,112.74
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Solution
The fourth proportional to 225,924.21, 338,649.86 and 76,112.74 is: 114,089.45
Step by Step Solution
- Step 1: Write the proportion equation
225,924.21 : 338,649.86 = 76,112.74 : x - Step 2: Convert to fraction form
225,924.21/338,649.86 = 76,112.74/x - Step 3: Cross multiply
225,924.21x = 338,649.86 × 76,112.74 - Step 4: Simplify right side
225,924.21x = 25,775,568,406.36 - Step 5: Solve for x
x = 25,775,568,406.36/225,924.21 - Step 6: Final answer
x = 114,089.45
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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.