Finding the Fourth Proportional to 318,106.08, 477,159.12 and 107,891.64
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Solution
The fourth proportional to 318,106.08, 477,159.12 and 107,891.64 is: 161,837.46
Step by Step Solution
- Step 1: Write the proportion equation
318,106.08 : 477,159.12 = 107,891.64 : x - Step 2: Convert to fraction form
318,106.08/477,159.12 = 107,891.64/x - Step 3: Cross multiply
318,106.08x = 477,159.12 × 107,891.64 - Step 4: Simplify right side
318,106.08x = 51,481,479,997.76 - Step 5: Solve for x
x = 51,481,479,997.76/318,106.08 - Step 6: Final answer
x = 161,837.46
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Similar ratio
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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.