Finding the Fourth Proportional to 290,290.73, 400,531.09 and 169,362.99
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Solution
The fourth proportional to 290,290.73, 400,531.09 and 169,362.99 is: 233,680.02
Step by Step Solution
- Step 1: Write the proportion equation
290,290.73 : 400,531.09 = 169,362.99 : x - Step 2: Convert to fraction form
290,290.73/400,531.09 = 169,362.99/x - Step 3: Cross multiply
290,290.73x = 400,531.09 × 169,362.99 - Step 4: Simplify right side
290,290.73x = 67,835,142,990.36 - Step 5: Solve for x
x = 67,835,142,990.36/290,290.73 - Step 6: Final answer
x = 233,680.02
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1.5x scale
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.