Finding the Fourth Proportional to 321,838.65, 482,791.68 and 119,490.12
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Solution
The fourth proportional to 321,838.65, 482,791.68 and 119,490.12 is: 179,247.69
Step by Step Solution
- Step 1: Write the proportion equation
321,838.65 : 482,791.68 = 119,490.12 : x - Step 2: Convert to fraction form
321,838.65/482,791.68 = 119,490.12/x - Step 3: Cross multiply
321,838.65x = 482,791.68 × 119,490.12 - Step 4: Simplify right side
321,838.65x = 57,688,835,778.20 - Step 5: Solve for x
x = 57,688,835,778.20/321,838.65 - Step 6: Final answer
x = 179,247.69
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1.5x scale
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.