Finding the Fourth Proportional to 320,473.96, 442,309.56 and 193,149.70
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Solution
The fourth proportional to 320,473.96, 442,309.56 and 193,149.70 is: 266,580.03
Step by Step Solution
- Step 1: Write the proportion equation
320,473.96 : 442,309.56 = 193,149.70 : x - Step 2: Convert to fraction form
320,473.96/442,309.56 = 193,149.70/x - Step 3: Cross multiply
320,473.96x = 442,309.56 × 193,149.70 - Step 4: Simplify right side
320,473.96x = 85,431,958,821.13 - Step 5: Solve for x
x = 85,431,958,821.13/320,473.96 - Step 6: Final answer
x = 266,580.03
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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.