Finding the Fourth Proportional to 393,291.24, 543,276.17 and 308,322.96
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Solution
The fourth proportional to 393,291.24, 543,276.17 and 308,322.96 is: 425,904.52
Step by Step Solution
- Step 1: Write the proportion equation
393,291.24 : 543,276.17 = 308,322.96 : x - Step 2: Convert to fraction form
393,291.24/543,276.17 = 308,322.96/x - Step 3: Cross multiply
393,291.24x = 543,276.17 × 308,322.96 - Step 4: Simplify right side
393,291.24x = 167,504,518,063.88 - Step 5: Solve for x
x = 167,504,518,063.88/393,291.24 - Step 6: Final answer
x = 425,904.52
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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.