Finding the Fourth Proportional to 210,894.26, 291,034.09 and 115,400.95
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Solution
The fourth proportional to 210,894.26, 291,034.09 and 115,400.95 is: 159,253.32
Step by Step Solution
- Step 1: Write the proportion equation
210,894.26 : 291,034.09 = 115,400.95 : x - Step 2: Convert to fraction form
210,894.26/291,034.09 = 115,400.95/x - Step 3: Cross multiply
210,894.26x = 291,034.09 × 115,400.95 - Step 4: Simplify right side
210,894.26x = 33,585,611,197.55 - Step 5: Solve for x
x = 33,585,611,197.55/210,894.26 - Step 6: Final answer
x = 159,253.32
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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.