Finding the Fourth Proportional to 194,918.70, 268,990.05 and 114,347.60
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Solution
The fourth proportional to 194,918.70, 268,990.05 and 114,347.60 is: 157,800.99
Step by Step Solution
- Step 1: Write the proportion equation
194,918.70 : 268,990.05 = 114,347.60 : x - Step 2: Convert to fraction form
194,918.70/268,990.05 = 114,347.60/x - Step 3: Cross multiply
194,918.70x = 268,990.05 × 114,347.60 - Step 4: Simplify right side
194,918.70x = 30,758,364,724.69 - Step 5: Solve for x
x = 30,758,364,724.69/194,918.70 - Step 6: Final answer
x = 157,800.99
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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.