Finding the Fourth Proportional to 275,616.68, 380,346.18 and 154,758.92
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Solution
The fourth proportional to 275,616.68, 380,346.18 and 154,758.92 is: 213,564.59
Step by Step Solution
- Step 1: Write the proportion equation
275,616.68 : 380,346.18 = 154,758.92 : x - Step 2: Convert to fraction form
275,616.68/380,346.18 = 154,758.92/x - Step 3: Cross multiply
275,616.68x = 380,346.18 × 154,758.92 - Step 4: Simplify right side
275,616.68x = 58,861,964,042.93 - Step 5: Solve for x
x = 58,861,964,042.93/275,616.68 - Step 6: Final answer
x = 213,564.59
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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.