Finding the Fourth Proportional to 385,239.98, 577,716.28 and 132,448.90
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Solution
The fourth proportional to 385,239.98, 577,716.28 and 132,448.90 is: 198,623.95
Step by Step Solution
- Step 1: Write the proportion equation
385,239.98 : 577,716.28 = 132,448.90 : x - Step 2: Convert to fraction form
385,239.98/577,716.28 = 132,448.90/x - Step 3: Cross multiply
385,239.98x = 577,716.28 × 132,448.90 - Step 4: Simplify right side
385,239.98x = 76,517,885,798.09 - Step 5: Solve for x
x = 76,517,885,798.09/385,239.98 - Step 6: Final answer
x = 198,623.95
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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.