Finding the Fourth Proportional to 228,427.28, 342,718.75 and 68,507.09
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Solution
The fourth proportional to 228,427.28, 342,718.75 and 68,507.09 is: 102,783.97
Step by Step Solution
- Step 1: Write the proportion equation
228,427.28 : 342,718.75 = 68,507.09 : x - Step 2: Convert to fraction form
228,427.28/342,718.75 = 68,507.09/x - Step 3: Cross multiply
228,427.28x = 342,718.75 × 68,507.09 - Step 4: Simplify right side
228,427.28x = 23,478,662,194.81 - Step 5: Solve for x
x = 23,478,662,194.81/228,427.28 - Step 6: Final answer
x = 102,783.97
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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.