Finding the Fourth Proportional to 207,029.20, 310,616.70 and 88,736.80
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Solution
The fourth proportional to 207,029.20, 310,616.70 and 88,736.80 is: 133,136.45
Step by Step Solution
- Step 1: Write the proportion equation
207,029.20 : 310,616.70 = 88,736.80 : x - Step 2: Convert to fraction form
207,029.20/310,616.70 = 88,736.80/x - Step 3: Cross multiply
207,029.20x = 310,616.70 × 88,736.80 - Step 4: Simplify right side
207,029.20x = 27,563,131,984.56 - Step 5: Solve for x
x = 27,563,131,984.56/207,029.20 - Step 6: Final answer
x = 133,136.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.