Finding the Fourth Proportional to 203,605.73, 281,009.63 and 112,990.80
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Solution
The fourth proportional to 203,605.73, 281,009.63 and 112,990.80 is: 155,946.02
Step by Step Solution
- Step 1: Write the proportion equation
203,605.73 : 281,009.63 = 112,990.80 : x - Step 2: Convert to fraction form
203,605.73/281,009.63 = 112,990.80/x - Step 3: Cross multiply
203,605.73x = 281,009.63 × 112,990.80 - Step 4: Simplify right side
203,605.73x = 31,751,502,901.40 - Step 5: Solve for x
x = 31,751,502,901.40/203,605.73 - Step 6: Final answer
x = 155,946.02
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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.