Finding the Fourth Proportional to 312,444.68, 431,171.51 and 169,201.44
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Solution
The fourth proportional to 312,444.68, 431,171.51 and 169,201.44 is: 233,496.82
Step by Step Solution
- Step 1: Write the proportion equation
312,444.68 : 431,171.51 = 169,201.44 : x - Step 2: Convert to fraction form
312,444.68/431,171.51 = 169,201.44/x - Step 3: Cross multiply
312,444.68x = 431,171.51 × 169,201.44 - Step 4: Simplify right side
312,444.68x = 72,954,839,532.97 - Step 5: Solve for x
x = 72,954,839,532.97/312,444.68 - Step 6: Final answer
x = 233,496.82
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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.