Finding the Fourth Proportional to 312,224.75, 430,870.13 and 168,984.79
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Solution
The fourth proportional to 312,224.75, 430,870.13 and 168,984.79 is: 233,198.99
Step by Step Solution
- Step 1: Write the proportion equation
312,224.75 : 430,870.13 = 168,984.79 : x - Step 2: Convert to fraction form
312,224.75/430,870.13 = 168,984.79/x - Step 3: Cross multiply
312,224.75x = 430,870.13 × 168,984.79 - Step 4: Simplify right side
312,224.75x = 72,810,496,280.97 - Step 5: Solve for x
x = 72,810,496,280.97/312,224.75 - Step 6: Final answer
x = 233,198.99
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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.