Finding the Fourth Proportional to 186,415.80, 279,623.70 and 107,465.10
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Solution
The fourth proportional to 186,415.80, 279,623.70 and 107,465.10 is: 161,197.65
Step by Step Solution
- Step 1: Write the proportion equation
186,415.80 : 279,623.70 = 107,465.10 : x - Step 2: Convert to fraction form
186,415.80/279,623.70 = 107,465.10/x - Step 3: Cross multiply
186,415.80x = 279,623.70 × 107,465.10 - Step 4: Simplify right side
186,415.80x = 30,049,788,882.87 - Step 5: Solve for x
x = 30,049,788,882.87/186,415.80 - Step 6: Final answer
x = 161,197.65
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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.