Finding the Fourth Proportional to 220,389.12, 304,135.56 and 119,787.12
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Solution
The fourth proportional to 220,389.12, 304,135.56 and 119,787.12 is: 165,305.45
Step by Step Solution
- Step 1: Write the proportion equation
220,389.12 : 304,135.56 = 119,787.12 : x - Step 2: Convert to fraction form
220,389.12/304,135.56 = 119,787.12/x - Step 3: Cross multiply
220,389.12x = 304,135.56 × 119,787.12 - Step 4: Simplify right side
220,389.12x = 36,431,522,821.99 - Step 5: Solve for x
x = 36,431,522,821.99/220,389.12 - Step 6: Final answer
x = 165,305.45
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1.5x scale
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.