Finding the Fourth Proportional to 306,136.91, 422,473.98 and 168,321.66
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Solution
The fourth proportional to 306,136.91, 422,473.98 and 168,321.66 is: 232,286.66
Step by Step Solution
- Step 1: Write the proportion equation
306,136.91 : 422,473.98 = 168,321.66 : x - Step 2: Convert to fraction form
306,136.91/422,473.98 = 168,321.66/x - Step 3: Cross multiply
306,136.91x = 422,473.98 × 168,321.66 - Step 4: Simplify right side
306,136.91x = 71,111,520,667.34 - Step 5: Solve for x
x = 71,111,520,667.34/306,136.91 - Step 6: Final answer
x = 232,286.66
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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.