Finding the Fourth Proportional to 321,117.50, 443,142.68 and 175,920.09
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Solution
The fourth proportional to 321,117.50, 443,142.68 and 175,920.09 is: 242,770.02
Step by Step Solution
- Step 1: Write the proportion equation
321,117.50 : 443,142.68 = 175,920.09 : x - Step 2: Convert to fraction form
321,117.50/443,142.68 = 175,920.09/x - Step 3: Cross multiply
321,117.50x = 443,142.68 × 175,920.09 - Step 4: Simplify right side
321,117.50x = 77,957,699,268.84 - Step 5: Solve for x
x = 77,957,699,268.84/321,117.50 - Step 6: Final answer
x = 242,770.02
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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.