Finding the Fourth Proportional to 210,968.18, 291,133.82 and 120,321.80
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Solution
The fourth proportional to 210,968.18, 291,133.82 and 120,321.80 is: 166,042.79
Step by Step Solution
- Step 1: Write the proportion equation
210,968.18 : 291,133.82 = 120,321.80 : x - Step 2: Convert to fraction form
210,968.18/291,133.82 = 120,321.80/x - Step 3: Cross multiply
210,968.18x = 291,133.82 × 120,321.80 - Step 4: Simplify right side
210,968.18x = 35,029,745,263.28 - Step 5: Solve for x
x = 35,029,745,263.28/210,968.18 - Step 6: Final answer
x = 166,042.79
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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.