Finding the Fourth Proportional to 320,861.54, 442,792.42 and 177,623.97
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Solution
The fourth proportional to 320,861.54, 442,792.42 and 177,623.97 is: 245,123.01
Step by Step Solution
- Step 1: Write the proportion equation
320,861.54 : 442,792.42 = 177,623.97 : x - Step 2: Convert to fraction form
320,861.54/442,792.42 = 177,623.97/x - Step 3: Cross multiply
320,861.54x = 442,792.42 × 177,623.97 - Step 4: Simplify right side
320,861.54x = 78,650,547,526.31 - Step 5: Solve for x
x = 78,650,547,526.31/320,861.54 - Step 6: Final answer
x = 245,123.01
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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.