Finding the Fourth Proportional to 331,384.13, 496,772.48 and 129,116.70
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Solution
The fourth proportional to 331,384.13, 496,772.48 and 129,116.70 is: 193,556.71
Step by Step Solution
- Step 1: Write the proportion equation
331,384.13 : 496,772.48 = 129,116.70 : x - Step 2: Convert to fraction form
331,384.13/496,772.48 = 129,116.70/x - Step 3: Cross multiply
331,384.13x = 496,772.48 × 129,116.70 - Step 4: Simplify right side
331,384.13x = 64,141,622,622.83 - Step 5: Solve for x
x = 64,141,622,622.83/331,384.13 - Step 6: Final answer
x = 193,556.71
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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.