Finding the Fourth Proportional to 229,912.68, 317,276.40 and 129,310.68
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Solution
The fourth proportional to 229,912.68, 317,276.40 and 129,310.68 is: 178,447.00
Step by Step Solution
- Step 1: Write the proportion equation
229,912.68 : 317,276.40 = 129,310.68 : x - Step 2: Convert to fraction form
229,912.68/317,276.40 = 129,310.68/x - Step 3: Cross multiply
229,912.68x = 317,276.40 × 129,310.68 - Step 4: Simplify right side
229,912.68x = 41,027,227,031.95 - Step 5: Solve for x
x = 41,027,227,031.95/229,912.68 - Step 6: Final answer
x = 178,447.00
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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.