Finding the Fourth Proportional to 216,479.85, 325,157.18 and 209,044.05
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Solution
The fourth proportional to 216,479.85, 325,157.18 and 209,044.05 is: 313,988.45
Step by Step Solution
- Step 1: Write the proportion equation
216,479.85 : 325,157.18 = 209,044.05 : x - Step 2: Convert to fraction form
216,479.85/325,157.18 = 209,044.05/x - Step 3: Cross multiply
216,479.85x = 325,157.18 × 209,044.05 - Step 4: Simplify right side
216,479.85x = 67,972,172,748.56 - Step 5: Solve for x
x = 67,972,172,748.56/216,479.85 - Step 6: Final answer
x = 313,988.45
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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.