Finding the Fourth Proportional to 210,487.26, 290,478.12 and 125,653.56
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Solution
The fourth proportional to 210,487.26, 290,478.12 and 125,653.56 is: 173,405.32
Step by Step Solution
- Step 1: Write the proportion equation
210,487.26 : 290,478.12 = 125,653.56 : x - Step 2: Convert to fraction form
210,487.26/290,478.12 = 125,653.56/x - Step 3: Cross multiply
210,487.26x = 290,478.12 × 125,653.56 - Step 4: Simplify right side
210,487.26x = 36,499,609,880.11 - Step 5: Solve for x
x = 36,499,609,880.11/210,487.26 - Step 6: Final answer
x = 173,405.32
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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.