Finding the Fourth Proportional to 312,116.07, 430,674.00 and 189,544.71
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Solution
The fourth proportional to 312,116.07, 430,674.00 and 189,544.71 is: 261,543.65
Step by Step Solution
- Step 1: Write the proportion equation
312,116.07 : 430,674.00 = 189,544.71 : x - Step 2: Convert to fraction form
312,116.07/430,674.00 = 189,544.71/x - Step 3: Cross multiply
312,116.07x = 430,674.00 × 189,544.71 - Step 4: Simplify right side
312,116.07x = 81,631,976,916.23 - Step 5: Solve for x
x = 81,631,976,916.23/312,116.07 - Step 6: Final answer
x = 261,543.65
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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.