Finding the Fourth Proportional to 312,240.07, 430,901.71 and 191,357.99
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Solution
The fourth proportional to 312,240.07, 430,901.71 and 191,357.99 is: 264,080.42
Step by Step Solution
- Step 1: Write the proportion equation
312,240.07 : 430,901.71 = 191,357.99 : x - Step 2: Convert to fraction form
312,240.07/430,901.71 = 191,357.99/x - Step 3: Cross multiply
312,240.07x = 430,901.71 × 191,357.99 - Step 4: Simplify right side
312,240.07x = 82,456,486,519.96 - Step 5: Solve for x
x = 82,456,486,519.96/312,240.07 - Step 6: Final answer
x = 264,080.42
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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.