Finding the Fourth Proportional to 447,961.80, 671,942.70 and 198,643.80
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Solution
The fourth proportional to 447,961.80, 671,942.70 and 198,643.80 is: 297,965.70
Step by Step Solution
- Step 1: Write the proportion equation
447,961.80 : 671,942.70 = 198,643.80 : x - Step 2: Convert to fraction form
447,961.80/671,942.70 = 198,643.80/x - Step 3: Cross multiply
447,961.80x = 671,942.70 × 198,643.80 - Step 4: Simplify right side
447,961.80x = 133,477,251,310.26 - Step 5: Solve for x
x = 133,477,251,310.26/447,961.80 - Step 6: Final answer
x = 297,965.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.