Finding the Fourth Proportional to 386,553.96, 579,239.17 and 161,792.06
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Solution
The fourth proportional to 386,553.96, 579,239.17 and 161,792.06 is: 242,440.40
Step by Step Solution
- Step 1: Write the proportion equation
386,553.96 : 579,239.17 = 161,792.06 : x - Step 2: Convert to fraction form
386,553.96/579,239.17 = 161,792.06/x - Step 3: Cross multiply
386,553.96x = 579,239.17 × 161,792.06 - Step 4: Simplify right side
386,553.96x = 93,716,295,246.31 - Step 5: Solve for x
x = 93,716,295,246.31/386,553.96 - Step 6: Final answer
x = 242,440.40
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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.