Finding the Fourth Proportional to 385,318.26, 531,740.70 and 215,552.52
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Solution
The fourth proportional to 385,318.26, 531,740.70 and 215,552.52 is: 297,463.32
Step by Step Solution
- Step 1: Write the proportion equation
385,318.26 : 531,740.70 = 215,552.52 : x - Step 2: Convert to fraction form
385,318.26/531,740.70 = 215,552.52/x - Step 3: Cross multiply
385,318.26x = 531,740.70 × 215,552.52 - Step 4: Simplify right side
385,318.26x = 114,618,047,871.56 - Step 5: Solve for x
x = 114,618,047,871.56/385,318.26 - Step 6: Final answer
x = 297,463.32
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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.