Finding the Fourth Proportional to 320,934.17, 442,902.99 and 177,694.21
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Solution
The fourth proportional to 320,934.17, 442,902.99 and 177,694.21 is: 245,225.67
Step by Step Solution
- Step 1: Write the proportion equation
320,934.17 : 442,902.99 = 177,694.21 : x - Step 2: Convert to fraction form
320,934.17/442,902.99 = 177,694.21/x - Step 3: Cross multiply
320,934.17x = 442,902.99 × 177,694.21 - Step 4: Simplify right side
320,934.17x = 78,701,296,914.69 - Step 5: Solve for x
x = 78,701,296,914.69/320,934.17 - Step 6: Final answer
x = 245,225.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.