Finding the Fourth Proportional to 407,394.18, 611,081.88 and 239,976.54
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Solution
The fourth proportional to 407,394.18, 611,081.88 and 239,976.54 is: 359,959.28
Step by Step Solution
- Step 1: Write the proportion equation
407,394.18 : 611,081.88 = 239,976.54 : x - Step 2: Convert to fraction form
407,394.18/611,081.88 = 239,976.54/x - Step 3: Cross multiply
407,394.18x = 611,081.88 × 239,976.54 - Step 4: Simplify right side
407,394.18x = 146,645,315,219.10 - Step 5: Solve for x
x = 146,645,315,219.10/407,394.18 - Step 6: Final answer
x = 359,959.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.