Finding the Fourth Proportional to 385,372.62, 531,814.68 and 215,606.88
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Solution
The fourth proportional to 385,372.62, 531,814.68 and 215,606.88 is: 297,537.75
Step by Step Solution
- Step 1: Write the proportion equation
385,372.62 : 531,814.68 = 215,606.88 : x - Step 2: Convert to fraction form
385,372.62/531,814.68 = 215,606.88/x - Step 3: Cross multiply
385,372.62x = 531,814.68 × 215,606.88 - Step 4: Simplify right side
385,372.62x = 114,662,903,893.00 - Step 5: Solve for x
x = 114,662,903,893.00/385,372.62 - Step 6: Final answer
x = 297,537.75
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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.