Finding the Fourth Proportional to 316,519.56, 436,806.84 and 173,292.96
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Solution
The fourth proportional to 316,519.56, 436,806.84 and 173,292.96 is: 239,149.68
Step by Step Solution
- Step 1: Write the proportion equation
316,519.56 : 436,806.84 = 173,292.96 : x - Step 2: Convert to fraction form
316,519.56/436,806.84 = 173,292.96/x - Step 3: Cross multiply
316,519.56x = 436,806.84 × 173,292.96 - Step 4: Simplify right side
316,519.56x = 75,695,550,251.85 - Step 5: Solve for x
x = 75,695,550,251.85/316,519.56 - Step 6: Final answer
x = 239,149.68
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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.