Finding the Fourth Proportional to 391,890.24, 587,530.80 and 125,497.44
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Solution
The fourth proportional to 391,890.24, 587,530.80 and 125,497.44 is: 188,148.63
Step by Step Solution
- Step 1: Write the proportion equation
391,890.24 : 587,530.80 = 125,497.44 : x - Step 2: Convert to fraction form
391,890.24/587,530.80 = 125,497.44/x - Step 3: Cross multiply
391,890.24x = 587,530.80 × 125,497.44 - Step 4: Simplify right side
391,890.24x = 73,733,611,321.15 - Step 5: Solve for x
x = 73,733,611,321.15/391,890.24 - Step 6: Final answer
x = 188,148.63
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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.