Finding the Fourth Proportional to 210,734.71, 290,813.74 and 115,241.38
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Solution
The fourth proportional to 210,734.71, 290,813.74 and 115,241.38 is: 159,033.02
Step by Step Solution
- Step 1: Write the proportion equation
210,734.71 : 290,813.74 = 115,241.38 : x - Step 2: Convert to fraction form
210,734.71/290,813.74 = 115,241.38/x - Step 3: Cross multiply
210,734.71x = 290,813.74 × 115,241.38 - Step 4: Simplify right side
210,734.71x = 33,513,777,989.48 - Step 5: Solve for x
x = 33,513,777,989.48/210,734.71 - Step 6: Final answer
x = 159,033.02
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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.