Finding the Fourth Proportional to 209,858.36, 289,604.56 and 114,365.08
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Solution
The fourth proportional to 209,858.36, 289,604.56 and 114,365.08 is: 157,823.82
Step by Step Solution
- Step 1: Write the proportion equation
209,858.36 : 289,604.56 = 114,365.08 : x - Step 2: Convert to fraction form
209,858.36/289,604.56 = 114,365.08/x - Step 3: Cross multiply
209,858.36x = 289,604.56 × 114,365.08 - Step 4: Simplify right side
209,858.36x = 33,120,648,672.76 - Step 5: Solve for x
x = 33,120,648,672.76/209,858.36 - Step 6: Final answer
x = 157,823.82
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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.