Finding the Fourth Proportional to 268,882.68, 403,382.58 and 81,889.32
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Solution
The fourth proportional to 268,882.68, 403,382.58 and 81,889.32 is: 122,851.81
Step by Step Solution
- Step 1: Write the proportion equation
268,882.68 : 403,382.58 = 81,889.32 : x - Step 2: Convert to fraction form
268,882.68/403,382.58 = 81,889.32/x - Step 3: Cross multiply
268,882.68x = 403,382.58 × 81,889.32 - Step 4: Simplify right side
268,882.68x = 33,032,725,176.05 - Step 5: Solve for x
x = 33,032,725,176.05/268,882.68 - Step 6: Final answer
x = 122,851.81
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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.