Finding the Fourth Proportional to 252,456.48, 348,391.80 and 139,283.28
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Solution
The fourth proportional to 252,456.48, 348,391.80 and 139,283.28 is: 192,211.95
Step by Step Solution
- Step 1: Write the proportion equation
252,456.48 : 348,391.80 = 139,283.28 : x - Step 2: Convert to fraction form
252,456.48/348,391.80 = 139,283.28/x - Step 3: Cross multiply
252,456.48x = 348,391.80 × 139,283.28 - Step 4: Simplify right side
252,456.48x = 48,525,152,629.10 - Step 5: Solve for x
x = 48,525,152,629.10/252,456.48 - Step 6: Final answer
x = 192,211.95
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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.