Finding the Fourth Proportional to 210,615.88, 290,649.92 and 115,122.96
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Solution
The fourth proportional to 210,615.88, 290,649.92 and 115,122.96 is: 158,869.69
Step by Step Solution
- Step 1: Write the proportion equation
210,615.88 : 290,649.92 = 115,122.96 : x - Step 2: Convert to fraction form
210,615.88/290,649.92 = 115,122.96/x - Step 3: Cross multiply
210,615.88x = 290,649.92 × 115,122.96 - Step 4: Simplify right side
210,615.88x = 33,460,479,114.16 - Step 5: Solve for x
x = 33,460,479,114.16/210,615.88 - Step 6: Final answer
x = 158,869.69
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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.