Finding the Fourth Proportional to 210,563.68, 290,571.12 and 115,070.08
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Solution
The fourth proportional to 210,563.68, 290,571.12 and 115,070.08 is: 158,793.02
Step by Step Solution
- Step 1: Write the proportion equation
210,563.68 : 290,571.12 = 115,070.08 : x - Step 2: Convert to fraction form
210,563.68/290,571.12 = 115,070.08/x - Step 3: Cross multiply
210,563.68x = 290,571.12 × 115,070.08 - Step 4: Simplify right side
210,563.68x = 33,436,042,024.09 - Step 5: Solve for x
x = 33,436,042,024.09/210,563.68 - Step 6: Final answer
x = 158,793.02
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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.