Finding the Fourth Proportional to 190,351.44, 285,215.68 and 115,243.96
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Solution
The fourth proportional to 190,351.44, 285,215.68 and 115,243.96 is: 172,677.36
Step by Step Solution
- Step 1: Write the proportion equation
190,351.44 : 285,215.68 = 115,243.96 : x - Step 2: Convert to fraction form
190,351.44/285,215.68 = 115,243.96/x - Step 3: Cross multiply
190,351.44x = 285,215.68 × 115,243.96 - Step 4: Simplify right side
190,351.44x = 32,869,384,417.29 - Step 5: Solve for x
x = 32,869,384,417.29/190,351.44 - Step 6: Final answer
x = 172,677.36
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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.