Finding the Fourth Proportional to 210,637.44, 290,679.70 and 115,144.52
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Solution
The fourth proportional to 210,637.44, 290,679.70 and 115,144.52 is: 158,899.46
Step by Step Solution
- Step 1: Write the proportion equation
210,637.44 : 290,679.70 = 115,144.52 : x - Step 2: Convert to fraction form
210,637.44/290,679.70 = 115,144.52/x - Step 3: Cross multiply
210,637.44x = 290,679.70 × 115,144.52 - Step 4: Simplify right side
210,637.44x = 33,470,174,530.24 - Step 5: Solve for x
x = 33,470,174,530.24/210,637.44 - Step 6: Final answer
x = 158,899.46
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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.