Finding the Fourth Proportional to 276,817.12, 382,007.61 and 149,492.70
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Solution
The fourth proportional to 276,817.12, 382,007.61 and 149,492.70 is: 206,299.92
Step by Step Solution
- Step 1: Write the proportion equation
276,817.12 : 382,007.61 = 149,492.70 : x - Step 2: Convert to fraction form
276,817.12/382,007.61 = 149,492.70/x - Step 3: Cross multiply
276,817.12x = 382,007.61 × 149,492.70 - Step 4: Simplify right side
276,817.12x = 57,107,349,039.45 - Step 5: Solve for x
x = 57,107,349,039.45/276,817.12 - Step 6: Final answer
x = 206,299.92
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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.