Finding the Fourth Proportional to 318,079.24, 477,116.44 and 78,192.08
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Solution
The fourth proportional to 318,079.24, 477,116.44 and 78,192.08 is: 117,287.53
Step by Step Solution
- Step 1: Write the proportion equation
318,079.24 : 477,116.44 = 78,192.08 : x - Step 2: Convert to fraction form
318,079.24/477,116.44 = 78,192.08/x - Step 3: Cross multiply
318,079.24x = 477,116.44 × 78,192.08 - Step 4: Simplify right side
318,079.24x = 37,306,726,845.80 - Step 5: Solve for x
x = 37,306,726,845.80/318,079.24 - Step 6: Final answer
x = 117,287.53
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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.