Finding the Fourth Proportional to 385,108.58, 577,655.68 and 115,236.88
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Solution
The fourth proportional to 385,108.58, 577,655.68 and 115,236.88 is: 172,853.17
Step by Step Solution
- Step 1: Write the proportion equation
385,108.58 : 577,655.68 = 115,236.88 : x - Step 2: Convert to fraction form
385,108.58/577,655.68 = 115,236.88/x - Step 3: Cross multiply
385,108.58x = 577,655.68 × 115,236.88 - Step 4: Simplify right side
385,108.58x = 66,567,238,277.48 - Step 5: Solve for x
x = 66,567,238,277.48/385,108.58 - Step 6: Final answer
x = 172,853.17
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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.