Finding the Fourth Proportional to 210,414.11, 290,366.98 and 114,921.19
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Solution
The fourth proportional to 210,414.11, 290,366.98 and 114,921.19 is: 158,588.79
Step by Step Solution
- Step 1: Write the proportion equation
210,414.11 : 290,366.98 = 114,921.19 : x - Step 2: Convert to fraction form
210,414.11/290,366.98 = 114,921.19/x - Step 3: Cross multiply
210,414.11x = 290,366.98 × 114,921.19 - Step 4: Simplify right side
210,414.11x = 33,369,318,878.31 - Step 5: Solve for x
x = 33,369,318,878.31/210,414.11 - Step 6: Final answer
x = 158,588.79
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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.