Finding the Fourth Proportional to 225,828.18, 338,742.84 and 76,173.60
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Solution
The fourth proportional to 225,828.18, 338,742.84 and 76,173.60 is: 114,260.59
Step by Step Solution
- Step 1: Write the proportion equation
225,828.18 : 338,742.84 = 76,173.60 : x - Step 2: Convert to fraction form
225,828.18/338,742.84 = 76,173.60/x - Step 3: Cross multiply
225,828.18x = 338,742.84 × 76,173.60 - Step 4: Simplify right side
225,828.18x = 25,803,261,597.02 - Step 5: Solve for x
x = 25,803,261,597.02/225,828.18 - Step 6: Final answer
x = 114,260.59
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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.