Finding the Fourth Proportional to 398,881.08, 550,446.24 and 229,126.12
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Solution
The fourth proportional to 398,881.08, 550,446.24 and 229,126.12 is: 316,188.50
Step by Step Solution
- Step 1: Write the proportion equation
398,881.08 : 550,446.24 = 229,126.12 : x - Step 2: Convert to fraction form
398,881.08/550,446.24 = 229,126.12/x - Step 3: Cross multiply
398,881.08x = 550,446.24 × 229,126.12 - Step 4: Simplify right side
398,881.08x = 126,121,611,239.79 - Step 5: Solve for x
x = 126,121,611,239.79/398,881.08 - Step 6: Final answer
x = 316,188.50
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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.