Finding the Fourth Proportional to 198,192.12, 273,590.46 and 121,723.62
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Solution
The fourth proportional to 198,192.12, 273,590.46 and 121,723.62 is: 168,031.01
Step by Step Solution
- Step 1: Write the proportion equation
198,192.12 : 273,590.46 = 121,723.62 : x - Step 2: Convert to fraction form
198,192.12/273,590.46 = 121,723.62/x - Step 3: Cross multiply
198,192.12x = 273,590.46 × 121,723.62 - Step 4: Simplify right side
198,192.12x = 33,302,421,188.67 - Step 5: Solve for x
x = 33,302,421,188.67/198,192.12 - Step 6: Final answer
x = 168,031.01
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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.