Finding the Fourth Proportional to 317,910.19, 476,864.07 and 81,252.49
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Solution
The fourth proportional to 317,910.19, 476,864.07 and 81,252.49 is: 121,878.42
Step by Step Solution
- Step 1: Write the proportion equation
317,910.19 : 476,864.07 = 81,252.49 : x - Step 2: Convert to fraction form
317,910.19/476,864.07 = 81,252.49/x - Step 3: Cross multiply
317,910.19x = 476,864.07 × 81,252.49 - Step 4: Simplify right side
317,910.19x = 38,746,393,079.03 - Step 5: Solve for x
x = 38,746,393,079.03/317,910.19 - Step 6: Final answer
x = 121,878.42
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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.