Finding the Fourth Proportional to 312,674.58, 469,639.50 and 186,560.94
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Solution
The fourth proportional to 312,674.58, 469,639.50 and 186,560.94 is: 280,215.89
Step by Step Solution
- Step 1: Write the proportion equation
312,674.58 : 469,639.50 = 186,560.94 : x - Step 2: Convert to fraction form
312,674.58/469,639.50 = 186,560.94/x - Step 3: Cross multiply
312,674.58x = 469,639.50 × 186,560.94 - Step 4: Simplify right side
312,674.58x = 87,616,386,581.13 - Step 5: Solve for x
x = 87,616,386,581.13/312,674.58 - Step 6: Final answer
x = 280,215.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.