Finding the Fourth Proportional to 320,933.67, 442,902.29 and 177,693.70
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Solution
The fourth proportional to 320,933.67, 442,902.29 and 177,693.70 is: 245,224.96
Step by Step Solution
- Step 1: Write the proportion equation
320,933.67 : 442,902.29 = 177,693.70 : x - Step 2: Convert to fraction form
320,933.67/442,902.29 = 177,693.70/x - Step 3: Cross multiply
320,933.67x = 442,902.29 × 177,693.70 - Step 4: Simplify right side
320,933.67x = 78,700,946,648.57 - Step 5: Solve for x
x = 78,700,946,648.57/320,933.67 - Step 6: Final answer
x = 245,224.96
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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.