Finding the Fourth Proportional to 275,355.48, 379,959.48 and 154,471.68
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Solution
The fourth proportional to 275,355.48, 379,959.48 and 154,471.68 is: 213,153.48
Step by Step Solution
- Step 1: Write the proportion equation
275,355.48 : 379,959.48 = 154,471.68 : x - Step 2: Convert to fraction form
275,355.48/379,959.48 = 154,471.68/x - Step 3: Cross multiply
275,355.48x = 379,959.48 × 154,471.68 - Step 4: Simplify right side
275,355.48x = 58,692,979,207.53 - Step 5: Solve for x
x = 58,692,979,207.53/275,355.48 - Step 6: Final answer
x = 213,153.48
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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.