Finding the Fourth Proportional to 209,752.58, 289,457.07 and 114,259.28
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Solution
The fourth proportional to 209,752.58, 289,457.07 and 114,259.28 is: 157,676.99
Step by Step Solution
- Step 1: Write the proportion equation
209,752.58 : 289,457.07 = 114,259.28 : x - Step 2: Convert to fraction form
209,752.58/289,457.07 = 114,259.28/x - Step 3: Cross multiply
209,752.58x = 289,457.07 × 114,259.28 - Step 4: Simplify right side
209,752.58x = 33,073,154,961.82 - Step 5: Solve for x
x = 33,073,154,961.82/209,752.58 - Step 6: Final answer
x = 157,676.99
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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.