Finding the Fourth Proportional to 201,472.11, 278,006.29 and 136,202.99
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Solution
The fourth proportional to 201,472.11, 278,006.29 and 136,202.99 is: 187,943.08
Step by Step Solution
- Step 1: Write the proportion equation
201,472.11 : 278,006.29 = 136,202.99 : x - Step 2: Convert to fraction form
201,472.11/278,006.29 = 136,202.99/x - Step 3: Cross multiply
201,472.11x = 278,006.29 × 136,202.99 - Step 4: Simplify right side
201,472.11x = 37,865,287,936.81 - Step 5: Solve for x
x = 37,865,287,936.81/201,472.11 - Step 6: Final answer
x = 187,943.08
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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.