Finding the Fourth Proportional to 210,441.99, 290,408.22 and 114,948.75
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Solution
The fourth proportional to 210,441.99, 290,408.22 and 114,948.75 is: 158,628.33
Step by Step Solution
- Step 1: Write the proportion equation
210,441.99 : 290,408.22 = 114,948.75 : x - Step 2: Convert to fraction form
210,441.99/290,408.22 = 114,948.75/x - Step 3: Cross multiply
210,441.99x = 290,408.22 × 114,948.75 - Step 4: Simplify right side
210,441.99x = 33,382,061,878.73 - Step 5: Solve for x
x = 33,382,061,878.73/210,441.99 - Step 6: Final answer
x = 158,628.33
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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.