Finding the Fourth Proportional to 285,725.17, 394,313.19 and 170,981.98
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Solution
The fourth proportional to 285,725.17, 394,313.19 and 170,981.98 is: 235,962.59
Step by Step Solution
- Step 1: Write the proportion equation
285,725.17 : 394,313.19 = 170,981.98 : x - Step 2: Convert to fraction form
285,725.17/394,313.19 = 170,981.98/x - Step 3: Cross multiply
285,725.17x = 394,313.19 × 170,981.98 - Step 4: Simplify right side
285,725.17x = 67,420,451,519.14 - Step 5: Solve for x
x = 67,420,451,519.14/285,725.17 - Step 6: Final answer
x = 235,962.59
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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.