Finding the Fourth Proportional to 297,079.19, 409,966.49 and 161,116.13
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Solution
The fourth proportional to 297,079.19, 409,966.49 and 161,116.13 is: 222,338.75
Step by Step Solution
- Step 1: Write the proportion equation
297,079.19 : 409,966.49 = 161,116.13 : x - Step 2: Convert to fraction form
297,079.19/409,966.49 = 161,116.13/x - Step 3: Cross multiply
297,079.19x = 409,966.49 × 161,116.13 - Step 4: Simplify right side
297,079.19x = 66,052,213,492.90 - Step 5: Solve for x
x = 66,052,213,492.90/297,079.19 - Step 6: Final answer
x = 222,338.75
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1.5x scale
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.