Finding the Fourth Proportional to 371,299.79, 512,379.99 and 201,530.27
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Solution
The fourth proportional to 371,299.79, 512,379.99 and 201,530.27 is: 278,104.33
Step by Step Solution
- Step 1: Write the proportion equation
371,299.79 : 512,379.99 = 201,530.27 : x - Step 2: Convert to fraction form
371,299.79/512,379.99 = 201,530.27/x - Step 3: Cross multiply
371,299.79x = 512,379.99 × 201,530.27 - Step 4: Simplify right side
371,299.79x = 103,260,077,727.30 - Step 5: Solve for x
x = 103,260,077,727.30/371,299.79 - Step 6: Final answer
x = 278,104.33
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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.