Finding the Fourth Proportional to 386,287.92, 533,071.62 and 214,206.12
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Solution
The fourth proportional to 386,287.92, 533,071.62 and 214,206.12 is: 295,601.28
Step by Step Solution
- Step 1: Write the proportion equation
386,287.92 : 533,071.62 = 214,206.12 : x - Step 2: Convert to fraction form
386,287.92/533,071.62 = 214,206.12/x - Step 3: Cross multiply
386,287.92x = 533,071.62 × 214,206.12 - Step 4: Simplify right side
386,287.92x = 114,187,203,402.31 - Step 5: Solve for x
x = 114,187,203,402.31/386,287.92 - Step 6: Final answer
x = 295,601.28
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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.