Finding the Fourth Proportional to 340,743.80, 511,115.70 and 261,027.65
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Solution
The fourth proportional to 340,743.80, 511,115.70 and 261,027.65 is: 391,541.48
Step by Step Solution
- Step 1: Write the proportion equation
340,743.80 : 511,115.70 = 261,027.65 : x - Step 2: Convert to fraction form
340,743.80/511,115.70 = 261,027.65/x - Step 3: Cross multiply
340,743.80x = 511,115.70 × 261,027.65 - Step 4: Simplify right side
340,743.80x = 133,415,330,049.11 - Step 5: Solve for x
x = 133,415,330,049.11/340,743.80 - Step 6: Final answer
x = 391,541.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.