Finding the Fourth Proportional to 205,163.68, 306,935.76 and 155,387.20
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Solution
The fourth proportional to 205,163.68, 306,935.76 and 155,387.20 is: 232,467.50
Step by Step Solution
- Step 1: Write the proportion equation
205,163.68 : 306,935.76 = 155,387.20 : x - Step 2: Convert to fraction form
205,163.68/306,935.76 = 155,387.20/x - Step 3: Cross multiply
205,163.68x = 306,935.76 × 155,387.20 - Step 4: Simplify right side
205,163.68x = 47,693,888,326.27 - Step 5: Solve for x
x = 47,693,888,326.27/205,163.68 - Step 6: Final answer
x = 232,467.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.