Finding the Fourth Proportional to 385,107.58, 577,654.19 and 115,235.88
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Solution
The fourth proportional to 385,107.58, 577,654.19 and 115,235.88 is: 172,851.67
Step by Step Solution
- Step 1: Write the proportion equation
385,107.58 : 577,654.19 = 115,235.88 : x - Step 2: Convert to fraction form
385,107.58/577,654.19 = 115,235.88/x - Step 3: Cross multiply
385,107.58x = 577,654.19 × 115,235.88 - Step 4: Simplify right side
385,107.58x = 66,566,488,344.16 - Step 5: Solve for x
x = 66,566,488,344.16/385,107.58 - Step 6: Final answer
x = 172,851.67
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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.