Finding the Fourth Proportional to 248,420.79, 372,578.94 and 79,956.18
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Solution
The fourth proportional to 248,420.79, 372,578.94 and 79,956.18 is: 119,917.45
Step by Step Solution
- Step 1: Write the proportion equation
248,420.79 : 372,578.94 = 79,956.18 : x - Step 2: Convert to fraction form
248,420.79/372,578.94 = 79,956.18/x - Step 3: Cross multiply
248,420.79x = 372,578.94 × 79,956.18 - Step 4: Simplify right side
248,420.79x = 29,789,988,790.85 - Step 5: Solve for x
x = 29,789,988,790.85/248,420.79 - Step 6: Final answer
x = 119,917.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.