Finding the Fourth Proportional to 229,901.68, 317,261.22 and 129,299.68
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Solution
The fourth proportional to 229,901.68, 317,261.22 and 129,299.68 is: 178,431.82
Step by Step Solution
- Step 1: Write the proportion equation
229,901.68 : 317,261.22 = 129,299.68 : x - Step 2: Convert to fraction form
229,901.68/317,261.22 = 129,299.68/x - Step 3: Cross multiply
229,901.68x = 317,261.22 × 129,299.68 - Step 4: Simplify right side
229,901.68x = 41,021,774,222.41 - Step 5: Solve for x
x = 41,021,774,222.41/229,901.68 - Step 6: Final answer
x = 178,431.82
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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.