Finding the Fourth Proportional to 210,474.55, 290,537.99 and 129,934.63
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Solution
The fourth proportional to 210,474.55, 290,537.99 and 129,934.63 is: 179,361.10
Step by Step Solution
- Step 1: Write the proportion equation
210,474.55 : 290,537.99 = 129,934.63 : x - Step 2: Convert to fraction form
210,474.55/290,537.99 = 129,934.63/x - Step 3: Cross multiply
210,474.55x = 290,537.99 × 129,934.63 - Step 4: Simplify right side
210,474.55x = 37,750,946,231.59 - Step 5: Solve for x
x = 37,750,946,231.59/210,474.55 - Step 6: Final answer
x = 179,361.10
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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.