Finding the Fourth Proportional to 392,701.71, 588,877.61 and 143,208.75
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Solution
The fourth proportional to 392,701.71, 588,877.61 and 143,208.75 is: 214,749.32
Step by Step Solution
- Step 1: Write the proportion equation
392,701.71 : 588,877.61 = 143,208.75 : x - Step 2: Convert to fraction form
392,701.71/588,877.61 = 143,208.75/x - Step 3: Cross multiply
392,701.71x = 588,877.61 × 143,208.75 - Step 4: Simplify right side
392,701.71x = 84,332,425,715.04 - Step 5: Solve for x
x = 84,332,425,715.04/392,701.71 - Step 6: Final answer
x = 214,749.32
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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.