Finding the Fourth Proportional to 312,208.75, 430,847.26 and 168,968.76
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Solution
The fourth proportional to 312,208.75, 430,847.26 and 168,968.76 is: 233,176.45
Step by Step Solution
- Step 1: Write the proportion equation
312,208.75 : 430,847.26 = 168,968.76 : x - Step 2: Convert to fraction form
312,208.75/430,847.26 = 168,968.76/x - Step 3: Cross multiply
312,208.75x = 430,847.26 × 168,968.76 - Step 4: Simplify right side
312,208.75x = 72,799,727,271.60 - Step 5: Solve for x
x = 72,799,727,271.60/312,208.75 - Step 6: Final answer
x = 233,176.45
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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.