Finding the Fourth Proportional to 229,888.72, 317,244.36 and 129,284.56
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Solution
The fourth proportional to 229,888.72, 317,244.36 and 129,284.56 is: 178,411.53
Step by Step Solution
- Step 1: Write the proportion equation
229,888.72 : 317,244.36 = 129,284.56 : x - Step 2: Convert to fraction form
229,888.72/317,244.36 = 129,284.56/x - Step 3: Cross multiply
229,888.72x = 317,244.36 × 129,284.56 - Step 4: Simplify right side
229,888.72x = 41,014,797,495.08 - Step 5: Solve for x
x = 41,014,797,495.08/229,888.72 - Step 6: Final answer
x = 178,411.53
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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.