Finding the Fourth Proportional to 198,599.72, 274,070.26 and 107,957.08
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Solution
The fourth proportional to 198,599.72, 274,070.26 and 107,957.08 is: 148,982.20
Step by Step Solution
- Step 1: Write the proportion equation
198,599.72 : 274,070.26 = 107,957.08 : x - Step 2: Convert to fraction form
198,599.72/274,070.26 = 107,957.08/x - Step 3: Cross multiply
198,599.72x = 274,070.26 × 107,957.08 - Step 4: Simplify right side
198,599.72x = 29,587,824,569.16 - Step 5: Solve for x
x = 29,587,824,569.16/198,599.72 - Step 6: Final answer
x = 148,982.20
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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.