Finding the Fourth Proportional to 225,549.84, 311,291.92 and 130,037.84
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Solution
The fourth proportional to 225,549.84, 311,291.92 and 130,037.84 is: 179,471.33
Step by Step Solution
- Step 1: Write the proportion equation
225,549.84 : 311,291.92 = 130,037.84 : x - Step 2: Convert to fraction form
225,549.84/311,291.92 = 130,037.84/x - Step 3: Cross multiply
225,549.84x = 311,291.92 × 130,037.84 - Step 4: Simplify right side
225,549.84x = 40,479,728,886.25 - Step 5: Solve for x
x = 40,479,728,886.25/225,549.84 - Step 6: Final answer
x = 179,471.33
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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.