Finding the Fourth Proportional to 222,135.28, 306,554.34 and 121,533.28
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Solution
The fourth proportional to 222,135.28, 306,554.34 and 121,533.28 is: 167,720.11
Step by Step Solution
- Step 1: Write the proportion equation
222,135.28 : 306,554.34 = 121,533.28 : x - Step 2: Convert to fraction form
222,135.28/306,554.34 = 121,533.28/x - Step 3: Cross multiply
222,135.28x = 306,554.34 × 121,533.28 - Step 4: Simplify right side
222,135.28x = 37,256,554,438.44 - Step 5: Solve for x
x = 37,256,554,438.44/222,135.28 - Step 6: Final answer
x = 167,720.11
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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.