Finding the Fourth Proportional to 209,201.90, 288,699.64 and 113,710.46
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Solution
The fourth proportional to 209,201.90, 288,699.64 and 113,710.46 is: 156,920.99
Step by Step Solution
- Step 1: Write the proportion equation
209,201.90 : 288,699.64 = 113,710.46 : x - Step 2: Convert to fraction form
209,201.90/288,699.64 = 113,710.46/x - Step 3: Cross multiply
209,201.90x = 288,699.64 × 113,710.46 - Step 4: Simplify right side
209,201.90x = 32,828,168,866.23 - Step 5: Solve for x
x = 32,828,168,866.23/209,201.90 - Step 6: Final answer
x = 156,920.99
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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.