Finding the Fourth Proportional to 186,982.21, 280,207.85 and 144,125.67
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Solution
The fourth proportional to 186,982.21, 280,207.85 and 144,125.67 is: 215,983.88
Step by Step Solution
- Step 1: Write the proportion equation
186,982.21 : 280,207.85 = 144,125.67 : x - Step 2: Convert to fraction form
186,982.21/280,207.85 = 144,125.67/x - Step 3: Cross multiply
186,982.21x = 280,207.85 × 144,125.67 - Step 4: Simplify right side
186,982.21x = 40,385,142,885.80 - Step 5: Solve for x
x = 40,385,142,885.80/186,982.21 - Step 6: Final answer
x = 215,983.88
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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.