Finding the Fourth Proportional to 385,536.81, 532,040.72 and 215,770.94
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Solution
The fourth proportional to 385,536.81, 532,040.72 and 215,770.94 is: 297,763.84
Step by Step Solution
- Step 1: Write the proportion equation
385,536.81 : 532,040.72 = 215,770.94 : x - Step 2: Convert to fraction form
385,536.81/532,040.72 = 215,770.94/x - Step 3: Cross multiply
385,536.81x = 532,040.72 × 215,770.94 - Step 4: Simplify right side
385,536.81x = 114,798,922,533.62 - Step 5: Solve for x
x = 114,798,922,533.62/385,536.81 - Step 6: Final answer
x = 297,763.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.