Finding the Fourth Proportional to 208,979.04, 288,479.35 and 141,087.97
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Solution
The fourth proportional to 208,979.04, 288,479.35 and 141,087.97 is: 194,760.99
Step by Step Solution
- Step 1: Write the proportion equation
208,979.04 : 288,479.35 = 141,087.97 : x - Step 2: Convert to fraction form
208,979.04/288,479.35 = 141,087.97/x - Step 3: Cross multiply
208,979.04x = 288,479.35 × 141,087.97 - Step 4: Simplify right side
208,979.04x = 40,700,963,730.58 - Step 5: Solve for x
x = 40,700,963,730.58/208,979.04 - Step 6: Final answer
x = 194,760.99
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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.