Finding the Fourth Proportional to 213,283.84, 319,549.92 and 190,117.12
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Solution
The fourth proportional to 213,283.84, 319,549.92 and 190,117.12 is: 284,840.66
Step by Step Solution
- Step 1: Write the proportion equation
213,283.84 : 319,549.92 = 190,117.12 : x - Step 2: Convert to fraction form
213,283.84/319,549.92 = 190,117.12/x - Step 3: Cross multiply
213,283.84x = 319,549.92 × 190,117.12 - Step 4: Simplify right side
213,283.84x = 60,751,910,486.63 - Step 5: Solve for x
x = 60,751,910,486.63/213,283.84 - Step 6: Final answer
x = 284,840.66
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1.5x scale
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.