Finding the Fourth Proportional to 261,507.44, 392,259.34 and 74,518.94
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Solution
The fourth proportional to 261,507.44, 392,259.34 and 74,518.94 is: 111,777.89
Step by Step Solution
- Step 1: Write the proportion equation
261,507.44 : 392,259.34 = 74,518.94 : x - Step 2: Convert to fraction form
261,507.44/392,259.34 = 74,518.94/x - Step 3: Cross multiply
261,507.44x = 392,259.34 × 74,518.94 - Step 4: Simplify right side
261,507.44x = 29,230,751,295.70 - Step 5: Solve for x
x = 29,230,751,295.70/261,507.44 - Step 6: Final answer
x = 111,777.89
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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.