Finding the Fourth Proportional to 210,231.70, 290,361.09 and 153,125.44
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Solution
The fourth proportional to 210,231.70, 290,361.09 and 153,125.44 is: 211,488.89
Step by Step Solution
- Step 1: Write the proportion equation
210,231.70 : 290,361.09 = 153,125.44 : x - Step 2: Convert to fraction form
210,231.70/290,361.09 = 153,125.44/x - Step 3: Cross multiply
210,231.70x = 290,361.09 × 153,125.44 - Step 4: Simplify right side
210,231.70x = 44,461,669,665.13 - Step 5: Solve for x
x = 44,461,669,665.13/210,231.70 - Step 6: Final answer
x = 211,488.89
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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.