Finding the Fourth Proportional to 256,666.05, 354,201.39 and 141,938.73
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Solution
The fourth proportional to 256,666.05, 354,201.39 and 141,938.73 is: 195,876.69
Step by Step Solution
- Step 1: Write the proportion equation
256,666.05 : 354,201.39 = 141,938.73 : x - Step 2: Convert to fraction form
256,666.05/354,201.39 = 141,938.73/x - Step 3: Cross multiply
256,666.05x = 354,201.39 × 141,938.73 - Step 4: Simplify right side
256,666.05x = 50,274,895,460.83 - Step 5: Solve for x
x = 50,274,895,460.83/256,666.05 - Step 6: Final answer
x = 195,876.69
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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.