Finding the Fourth Proportional to 245,525.31, 338,825.16 and 138,095.55
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Solution
The fourth proportional to 245,525.31, 338,825.16 and 138,095.55 is: 190,571.99
Step by Step Solution
- Step 1: Write the proportion equation
245,525.31 : 338,825.16 = 138,095.55 : x - Step 2: Convert to fraction form
245,525.31/338,825.16 = 138,095.55/x - Step 3: Cross multiply
245,525.31x = 338,825.16 × 138,095.55 - Step 4: Simplify right side
245,525.31x = 46,790,246,824.04 - Step 5: Solve for x
x = 46,790,246,824.04/245,525.31 - Step 6: Final answer
x = 190,571.99
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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.