Finding the Fourth Proportional to 290,497.70, 435,578.88 and 112,797.06
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Solution
The fourth proportional to 290,497.70, 435,578.88 and 112,797.06 is: 169,130.49
Step by Step Solution
- Step 1: Write the proportion equation
290,497.70 : 435,578.88 = 112,797.06 : x - Step 2: Convert to fraction form
290,497.70/435,578.88 = 112,797.06/x - Step 3: Cross multiply
290,497.70x = 435,578.88 × 112,797.06 - Step 4: Simplify right side
290,497.70x = 49,132,017,062.09 - Step 5: Solve for x
x = 49,132,017,062.09/290,497.70 - Step 6: Final answer
x = 169,130.49
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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.