Finding the Fourth Proportional to 385,188.26, 577,309.15 and 216,353.68
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Solution
The fourth proportional to 385,188.26, 577,309.15 and 216,353.68 is: 324,264.71
Step by Step Solution
- Step 1: Write the proportion equation
385,188.26 : 577,309.15 = 216,353.68 : x - Step 2: Convert to fraction form
385,188.26/577,309.15 = 216,353.68/x - Step 3: Cross multiply
385,188.26x = 577,309.15 × 216,353.68 - Step 4: Simplify right side
385,188.26x = 124,902,958,559.29 - Step 5: Solve for x
x = 124,902,958,559.29/385,188.26 - Step 6: Final answer
x = 324,264.71
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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.