Finding the Fourth Proportional to 386,101.17, 578,511.68 and 273,222.09
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Solution
The fourth proportional to 386,101.17, 578,511.68 and 273,222.09 is: 409,380.19
Step by Step Solution
- Step 1: Write the proportion equation
386,101.17 : 578,511.68 = 273,222.09 : x - Step 2: Convert to fraction form
386,101.17/578,511.68 = 273,222.09/x - Step 3: Cross multiply
386,101.17x = 578,511.68 × 273,222.09 - Step 4: Simplify right side
386,101.17x = 158,062,168,932.90 - Step 5: Solve for x
x = 158,062,168,932.90/386,101.17 - Step 6: Final answer
x = 409,380.19
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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.