Finding the Fourth Proportional to 225,885.85, 311,729.21 and 125,281.69
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Solution
The fourth proportional to 225,885.85, 311,729.21 and 125,281.69 is: 172,892.47
Step by Step Solution
- Step 1: Write the proportion equation
225,885.85 : 311,729.21 = 125,281.69 : x - Step 2: Convert to fraction form
225,885.85/311,729.21 = 125,281.69/x - Step 3: Cross multiply
225,885.85x = 311,729.21 × 125,281.69 - Step 4: Simplify right side
225,885.85x = 39,053,961,315.24 - Step 5: Solve for x
x = 39,053,961,315.24/225,885.85 - Step 6: Final answer
x = 172,892.47
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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.