Finding the Fourth Proportional to 211,859.12, 317,783.82 and 106,649.84
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Solution
The fourth proportional to 211,859.12, 317,783.82 and 106,649.84 is: 159,972.31
Step by Step Solution
- Step 1: Write the proportion equation
211,859.12 : 317,783.82 = 106,649.84 : x - Step 2: Convert to fraction form
211,859.12/317,783.82 = 106,649.84/x - Step 3: Cross multiply
211,859.12x = 317,783.82 × 106,649.84 - Step 4: Simplify right side
211,859.12x = 33,891,593,557.59 - Step 5: Solve for x
x = 33,891,593,557.59/211,859.12 - Step 6: Final answer
x = 159,972.31
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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.