Finding the Fourth Proportional to 306,136.92, 422,495.10 and 170,197.32
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Solution
The fourth proportional to 306,136.92, 422,495.10 and 170,197.32 is: 234,886.84
Step by Step Solution
- Step 1: Write the proportion equation
306,136.92 : 422,495.10 = 170,197.32 : x - Step 2: Convert to fraction form
306,136.92/422,495.10 = 170,197.32/x - Step 3: Cross multiply
306,136.92x = 422,495.10 × 170,197.32 - Step 4: Simplify right side
306,136.92x = 71,907,533,733.13 - Step 5: Solve for x
x = 71,907,533,733.13/306,136.92 - Step 6: Final answer
x = 234,886.84
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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.