Finding the Fourth Proportional to 220,159.99, 330,135.89 and 85,287.23
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Solution
The fourth proportional to 220,159.99, 330,135.89 and 85,287.23 is: 127,890.52
Step by Step Solution
- Step 1: Write the proportion equation
220,159.99 : 330,135.89 = 85,287.23 : x - Step 2: Convert to fraction form
220,159.99/330,135.89 = 85,287.23/x - Step 3: Cross multiply
220,159.99x = 330,135.89 × 85,287.23 - Step 4: Simplify right side
220,159.99x = 28,156,375,062.41 - Step 5: Solve for x
x = 28,156,375,062.41/220,159.99 - Step 6: Final answer
x = 127,890.52
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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.