Finding the Fourth Proportional to 296,715.12, 409,701.51 and 274,045.05
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Solution
The fourth proportional to 296,715.12, 409,701.51 and 274,045.05 is: 378,398.89
Step by Step Solution
- Step 1: Write the proportion equation
296,715.12 : 409,701.51 = 274,045.05 : x - Step 2: Convert to fraction form
296,715.12/409,701.51 = 274,045.05/x - Step 3: Cross multiply
296,715.12x = 409,701.51 × 274,045.05 - Step 4: Simplify right side
296,715.12x = 112,276,670,793.03 - Step 5: Solve for x
x = 112,276,670,793.03/296,715.12 - Step 6: Final answer
x = 378,398.89
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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.