Finding the Fourth Proportional to 373,189.07, 514,981.49 and 212,021.75
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Solution
The fourth proportional to 373,189.07, 514,981.49 and 212,021.75 is: 292,578.98
Step by Step Solution
- Step 1: Write the proportion equation
373,189.07 : 514,981.49 = 212,021.75 : x - Step 2: Convert to fraction form
373,189.07/514,981.49 = 212,021.75/x - Step 3: Cross multiply
373,189.07x = 514,981.49 × 212,021.75 - Step 4: Simplify right side
373,189.07x = 109,187,276,727.41 - Step 5: Solve for x
x = 109,187,276,727.41/373,189.07 - Step 6: Final answer
x = 292,578.98
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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.