Finding the Fourth Proportional to 386,343.36, 579,597.12 and 120,097.44
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Solution
The fourth proportional to 386,343.36, 579,597.12 and 120,097.44 is: 180,171.68
Step by Step Solution
- Step 1: Write the proportion equation
386,343.36 : 579,597.12 = 120,097.44 : x - Step 2: Convert to fraction form
386,343.36/579,597.12 = 120,097.44/x - Step 3: Cross multiply
386,343.36x = 579,597.12 × 120,097.44 - Step 4: Simplify right side
386,343.36x = 69,608,130,343.37 - Step 5: Solve for x
x = 69,608,130,343.37/386,343.36 - Step 6: Final answer
x = 180,171.68
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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.