Finding the Fourth Proportional to 178,649.97, 268,080.05 and 66,409.08
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Solution
The fourth proportional to 178,649.97, 268,080.05 and 66,409.08 is: 99,652.69
Step by Step Solution
- Step 1: Write the proportion equation
178,649.97 : 268,080.05 = 66,409.08 : x - Step 2: Convert to fraction form
178,649.97/268,080.05 = 66,409.08/x - Step 3: Cross multiply
178,649.97x = 268,080.05 × 66,409.08 - Step 4: Simplify right side
178,649.97x = 17,802,949,486.85 - Step 5: Solve for x
x = 17,802,949,486.85/178,649.97 - Step 6: Final answer
x = 99,652.69
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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.