Finding the Fourth Proportional to 385,174.08, 531,551.49 and 210,754.75
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Solution
The fourth proportional to 385,174.08, 531,551.49 and 210,754.75 is: 290,847.72
Step by Step Solution
- Step 1: Write the proportion equation
385,174.08 : 531,551.49 = 210,754.75 : x - Step 2: Convert to fraction form
385,174.08/531,551.49 = 210,754.75/x - Step 3: Cross multiply
385,174.08x = 531,551.49 × 210,754.75 - Step 4: Simplify right side
385,174.08x = 112,027,001,387.08 - Step 5: Solve for x
x = 112,027,001,387.08/385,174.08 - Step 6: Final answer
x = 290,847.72
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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.