Finding the Fourth Proportional to 283,771.71, 425,923.29 and 143,628.75
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Solution
The fourth proportional to 283,771.71, 425,923.29 and 143,628.75 is: 215,577.62
Step by Step Solution
- Step 1: Write the proportion equation
283,771.71 : 425,923.29 = 143,628.75 : x - Step 2: Convert to fraction form
283,771.71/425,923.29 = 143,628.75/x - Step 3: Cross multiply
283,771.71x = 425,923.29 × 143,628.75 - Step 4: Simplify right side
283,771.71x = 61,174,829,738.59 - Step 5: Solve for x
x = 61,174,829,738.59/283,771.71 - Step 6: Final answer
x = 215,577.62
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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.