Finding the Fourth Proportional to 190,238.31, 285,376.34 and 70,326.68
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Solution
The fourth proportional to 190,238.31, 285,376.34 and 70,326.68 is: 105,496.99
Step by Step Solution
- Step 1: Write the proportion equation
190,238.31 : 285,376.34 = 70,326.68 : x - Step 2: Convert to fraction form
190,238.31/285,376.34 = 70,326.68/x - Step 3: Cross multiply
190,238.31x = 285,376.34 × 70,326.68 - Step 4: Simplify right side
190,238.31x = 20,069,568,764.24 - Step 5: Solve for x
x = 20,069,568,764.24/190,238.31 - Step 6: Final answer
x = 105,496.99
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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.