Finding the Fourth Proportional to 239,861.01, 331,021.17 and 132,430.71
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Solution
The fourth proportional to 239,861.01, 331,021.17 and 132,430.71 is: 182,761.54
Step by Step Solution
- Step 1: Write the proportion equation
239,861.01 : 331,021.17 = 132,430.71 : x - Step 2: Convert to fraction form
239,861.01/331,021.17 = 132,430.71/x - Step 3: Cross multiply
239,861.01x = 331,021.17 × 132,430.71 - Step 4: Simplify right side
239,861.01x = 43,837,368,568.13 - Step 5: Solve for x
x = 43,837,368,568.13/239,861.01 - Step 6: Final answer
x = 182,761.54
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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.