Finding the Fourth Proportional to 251,218.08, 346,668.12 and 138,018.96
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Solution
The fourth proportional to 251,218.08, 346,668.12 and 138,018.96 is: 190,459.12
Step by Step Solution
- Step 1: Write the proportion equation
251,218.08 : 346,668.12 = 138,018.96 : x - Step 2: Convert to fraction form
251,218.08/346,668.12 = 138,018.96/x - Step 3: Cross multiply
251,218.08x = 346,668.12 × 138,018.96 - Step 4: Simplify right side
251,218.08x = 47,846,773,387.56 - Step 5: Solve for x
x = 47,846,773,387.56/251,218.08 - Step 6: Final answer
x = 190,459.12
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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.