Finding the Fourth Proportional to 225,555.12, 311,252.60 and 124,945.84
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Solution
The fourth proportional to 225,555.12, 311,252.60 and 124,945.84 is: 172,417.80
Step by Step Solution
- Step 1: Write the proportion equation
225,555.12 : 311,252.60 = 124,945.84 : x - Step 2: Convert to fraction form
225,555.12/311,252.60 = 124,945.84/x - Step 3: Cross multiply
225,555.12x = 311,252.60 × 124,945.84 - Step 4: Simplify right side
225,555.12x = 38,889,717,559.18 - Step 5: Solve for x
x = 38,889,717,559.18/225,555.12 - Step 6: Final answer
x = 172,417.80
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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.