Finding the Fourth Proportional to 253,709.28, 350,118.84 and 138,992.01
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Solution
The fourth proportional to 253,709.28, 350,118.84 and 138,992.01 is: 191,808.99
Step by Step Solution
- Step 1: Write the proportion equation
253,709.28 : 350,118.84 = 138,992.01 : x - Step 2: Convert to fraction form
253,709.28/350,118.84 = 138,992.01/x - Step 3: Cross multiply
253,709.28x = 350,118.84 × 138,992.01 - Step 4: Simplify right side
253,709.28x = 48,663,721,310.47 - Step 5: Solve for x
x = 48,663,721,310.47/253,709.28 - Step 6: Final answer
x = 191,808.99
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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.