Finding the Fourth Proportional to 385,252.60, 577,880.70 and 135,934.60
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Solution
The fourth proportional to 385,252.60, 577,880.70 and 135,934.60 is: 203,902.54
Step by Step Solution
- Step 1: Write the proportion equation
385,252.60 : 577,880.70 = 135,934.60 : x - Step 2: Convert to fraction form
385,252.60/577,880.70 = 135,934.60/x - Step 3: Cross multiply
385,252.60x = 577,880.70 × 135,934.60 - Step 4: Simplify right side
385,252.60x = 78,553,981,802.22 - Step 5: Solve for x
x = 78,553,981,802.22/385,252.60 - Step 6: Final answer
x = 203,902.54
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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.