Finding the Fourth Proportional to 371,311.36, 512,409.72 and 201,545.44
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Solution
The fourth proportional to 371,311.36, 512,409.72 and 201,545.44 is: 278,132.73
Step by Step Solution
- Step 1: Write the proportion equation
371,311.36 : 512,409.72 = 201,545.44 : x - Step 2: Convert to fraction form
371,311.36/512,409.72 = 201,545.44/x - Step 3: Cross multiply
371,311.36x = 512,409.72 × 201,545.44 - Step 4: Simplify right side
371,311.36x = 103,273,842,477.68 - Step 5: Solve for x
x = 103,273,842,477.68/371,311.36 - Step 6: Final answer
x = 278,132.73
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1.5x scale
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.