Finding the Fourth Proportional to 245,622.88, 338,957.18 and 136,725.49
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Solution
The fourth proportional to 245,622.88, 338,957.18 and 136,725.49 is: 188,679.84
Step by Step Solution
- Step 1: Write the proportion equation
245,622.88 : 338,957.18 = 136,725.49 : x - Step 2: Convert to fraction form
245,622.88/338,957.18 = 136,725.49/x - Step 3: Cross multiply
245,622.88x = 338,957.18 × 136,725.49 - Step 4: Simplify right side
245,622.88x = 46,344,084,993.50 - Step 5: Solve for x
x = 46,344,084,993.50/245,622.88 - Step 6: Final answer
x = 188,679.84
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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.