Finding the Fourth Proportional to 190,336.18, 285,192.79 and 115,228.68
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Solution
The fourth proportional to 190,336.18, 285,192.79 and 115,228.68 is: 172,654.45
Step by Step Solution
- Step 1: Write the proportion equation
190,336.18 : 285,192.79 = 115,228.68 : x - Step 2: Convert to fraction form
190,336.18/285,192.79 = 115,228.68/x - Step 3: Cross multiply
190,336.18x = 285,192.79 × 115,228.68 - Step 4: Simplify right side
190,336.18x = 32,862,388,737.22 - Step 5: Solve for x
x = 32,862,388,737.22/190,336.18 - Step 6: Final answer
x = 172,654.45
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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.