Finding the Fourth Proportional to 225,494.28, 311,164.98 and 124,890.12
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Solution
The fourth proportional to 225,494.28, 311,164.98 and 124,890.12 is: 172,338.88
Step by Step Solution
- Step 1: Write the proportion equation
225,494.28 : 311,164.98 = 124,890.12 : x - Step 2: Convert to fraction form
225,494.28/311,164.98 = 124,890.12/x - Step 3: Cross multiply
225,494.28x = 311,164.98 × 124,890.12 - Step 4: Simplify right side
225,494.28x = 38,861,431,692.00 - Step 5: Solve for x
x = 38,861,431,692.00/225,494.28 - Step 6: Final answer
x = 172,338.88
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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.