Finding the Fourth Proportional to 215,929.06, 297,982.62 and 120,441.94
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Solution
The fourth proportional to 215,929.06, 297,982.62 and 120,441.94 is: 166,210.17
Step by Step Solution
- Step 1: Write the proportion equation
215,929.06 : 297,982.62 = 120,441.94 : x - Step 2: Convert to fraction form
215,929.06/297,982.62 = 120,441.94/x - Step 3: Cross multiply
215,929.06x = 297,982.62 × 120,441.94 - Step 4: Simplify right side
215,929.06x = 35,889,604,839.08 - Step 5: Solve for x
x = 35,889,604,839.08/215,929.06 - Step 6: Final answer
x = 166,210.17
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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.