Finding the Fourth Proportional to 395,129.79, 592,095.99 and 261,531.44
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Solution
The fourth proportional to 395,129.79, 592,095.99 and 261,531.44 is: 391,900.88
Step by Step Solution
- Step 1: Write the proportion equation
395,129.79 : 592,095.99 = 261,531.44 : x - Step 2: Convert to fraction form
395,129.79/592,095.99 = 261,531.44/x - Step 3: Cross multiply
395,129.79x = 592,095.99 × 261,531.44 - Step 4: Simplify right side
395,129.79x = 154,851,713,922.45 - Step 5: Solve for x
x = 154,851,713,922.45/395,129.79 - Step 6: Final answer
x = 391,900.88
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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.