Finding the Fourth Proportional to 190,336.68, 285,193.55 and 115,229.18
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Solution
The fourth proportional to 190,336.68, 285,193.55 and 115,229.18 is: 172,655.20
Step by Step Solution
- Step 1: Write the proportion equation
190,336.68 : 285,193.55 = 115,229.18 : x - Step 2: Convert to fraction form
190,336.68/285,193.55 = 115,229.18/x - Step 3: Cross multiply
190,336.68x = 285,193.55 × 115,229.18 - Step 4: Simplify right side
190,336.68x = 32,862,616,905.68 - Step 5: Solve for x
x = 32,862,616,905.68/190,336.68 - Step 6: Final answer
x = 172,655.20
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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.