Finding the Fourth Proportional to 319,107.84, 440,369.64 and 173,914.80
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Solution
The fourth proportional to 319,107.84, 440,369.64 and 173,914.80 is: 240,002.87
Step by Step Solution
- Step 1: Write the proportion equation
319,107.84 : 440,369.64 = 173,914.80 : x - Step 2: Convert to fraction form
319,107.84/440,369.64 = 173,914.80/x - Step 3: Cross multiply
319,107.84x = 440,369.64 × 173,914.80 - Step 4: Simplify right side
319,107.84x = 76,586,797,866.67 - Step 5: Solve for x
x = 76,586,797,866.67/319,107.84 - Step 6: Final answer
x = 240,002.87
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1.5x scale
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.