Finding the Fourth Proportional to 385,116.34, 577,687.70 and 132,394.68
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Solution
The fourth proportional to 385,116.34, 577,687.70 and 132,394.68 is: 198,596.55
Step by Step Solution
- Step 1: Write the proportion equation
385,116.34 : 577,687.70 = 132,394.68 : x - Step 2: Convert to fraction form
385,116.34/577,687.70 = 132,394.68/x - Step 3: Cross multiply
385,116.34x = 577,687.70 × 132,394.68 - Step 4: Simplify right side
385,116.34x = 76,482,778,181.44 - Step 5: Solve for x
x = 76,482,778,181.44/385,116.34 - Step 6: Final answer
x = 198,596.55
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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.