Finding the Fourth Proportional to 297,857.79, 411,047.91 and 161,891.70
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Solution
The fourth proportional to 297,857.79, 411,047.91 and 161,891.70 is: 223,412.80
Step by Step Solution
- Step 1: Write the proportion equation
297,857.79 : 411,047.91 = 161,891.70 : x - Step 2: Convert to fraction form
297,857.79/411,047.91 = 161,891.70/x - Step 3: Cross multiply
297,857.79x = 411,047.91 × 161,891.70 - Step 4: Simplify right side
297,857.79x = 66,545,242,876.11 - Step 5: Solve for x
x = 66,545,242,876.11/297,857.79 - Step 6: Final answer
x = 223,412.80
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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.