Finding the Fourth Proportional to 312,174.21, 430,800.42 and 168,934.26
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Solution
The fourth proportional to 312,174.21, 430,800.42 and 168,934.26 is: 233,129.28
Step by Step Solution
- Step 1: Write the proportion equation
312,174.21 : 430,800.42 = 168,934.26 : x - Step 2: Convert to fraction form
312,174.21/430,800.42 = 168,934.26/x - Step 3: Cross multiply
312,174.21x = 430,800.42 × 168,934.26 - Step 4: Simplify right side
312,174.21x = 72,776,950,160.39 - Step 5: Solve for x
x = 72,776,950,160.39/312,174.21 - Step 6: Final answer
x = 233,129.28
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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.