Finding the Fourth Proportional to 389,414.75, 537,392.36 and 210,566.75
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Solution
The fourth proportional to 389,414.75, 537,392.36 and 210,566.75 is: 290,582.12
Step by Step Solution
- Step 1: Write the proportion equation
389,414.75 : 537,392.36 = 210,566.75 : x - Step 2: Convert to fraction form
389,414.75/537,392.36 = 210,566.75/x - Step 3: Cross multiply
389,414.75x = 537,392.36 × 210,566.75 - Step 4: Simplify right side
389,414.75x = 113,156,961,667.20 - Step 5: Solve for x
x = 113,156,961,667.20/389,414.75 - Step 6: Final answer
x = 290,582.12
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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.