Finding the Fourth Proportional to 386,198.84, 579,219.08 and 146,229.95
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Solution
The fourth proportional to 386,198.84, 579,219.08 and 146,229.95 is: 219,314.94
Step by Step Solution
- Step 1: Write the proportion equation
386,198.84 : 579,219.08 = 146,229.95 : x - Step 2: Convert to fraction form
386,198.84/579,219.08 = 146,229.95/x - Step 3: Cross multiply
386,198.84x = 579,219.08 × 146,229.95 - Step 4: Simplify right side
386,198.84x = 84,699,173,480.20 - Step 5: Solve for x
x = 84,699,173,480.20/386,198.84 - Step 6: Final answer
x = 219,314.94
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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.