Finding the Fourth Proportional to 216,976.74, 299,424.54 and 121,486.84
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Solution
The fourth proportional to 216,976.74, 299,424.54 and 121,486.84 is: 167,649.96
Step by Step Solution
- Step 1: Write the proportion equation
216,976.74 : 299,424.54 = 121,486.84 : x - Step 2: Convert to fraction form
216,976.74/299,424.54 = 121,486.84/x - Step 3: Cross multiply
216,976.74x = 299,424.54 × 121,486.84 - Step 4: Simplify right side
216,976.74x = 36,376,141,183.05 - Step 5: Solve for x
x = 36,376,141,183.05/216,976.74 - Step 6: Final answer
x = 167,649.96
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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.