Finding the Fourth Proportional to 312,966.76, 431,891.76 and 169,727.08
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Solution
The fourth proportional to 312,966.76, 431,891.76 and 169,727.08 is: 234,222.09
Step by Step Solution
- Step 1: Write the proportion equation
312,966.76 : 431,891.76 = 169,727.08 : x - Step 2: Convert to fraction form
312,966.76/431,891.76 = 169,727.08/x - Step 3: Cross multiply
312,966.76x = 431,891.76 × 169,727.08 - Step 4: Simplify right side
312,966.76x = 73,303,727,300.86 - Step 5: Solve for x
x = 73,303,727,300.86/312,966.76 - Step 6: Final answer
x = 234,222.09
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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.