Finding the Fourth Proportional to 245,554.13, 338,861.27 and 138,124.17
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Solution
The fourth proportional to 245,554.13, 338,861.27 and 138,124.17 is: 190,609.43
Step by Step Solution
- Step 1: Write the proportion equation
245,554.13 : 338,861.27 = 138,124.17 : x - Step 2: Convert to fraction form
245,554.13/338,861.27 = 138,124.17/x - Step 3: Cross multiply
245,554.13x = 338,861.27 × 138,124.17 - Step 4: Simplify right side
245,554.13x = 46,804,932,009.21 - Step 5: Solve for x
x = 46,804,932,009.21/245,554.13 - Step 6: Final answer
x = 190,609.43
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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.