Finding the Fourth Proportional to 386,476.79, 579,754.96 and 133,756.84
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Solution
The fourth proportional to 386,476.79, 579,754.96 and 133,756.84 is: 200,649.02
Step by Step Solution
- Step 1: Write the proportion equation
386,476.79 : 579,754.96 = 133,756.84 : x - Step 2: Convert to fraction form
386,476.79/579,754.96 = 133,756.84/x - Step 3: Cross multiply
386,476.79x = 579,754.96 × 133,756.84 - Step 4: Simplify right side
386,476.79x = 77,546,189,640.15 - Step 5: Solve for x
x = 77,546,189,640.15/386,476.79 - Step 6: Final answer
x = 200,649.02
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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.