Finding the Fourth Proportional to 225,891.70, 311,730.64 and 125,289.70
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Solution
The fourth proportional to 225,891.70, 311,730.64 and 125,289.70 is: 172,899.84
Step by Step Solution
- Step 1: Write the proportion equation
225,891.70 : 311,730.64 = 125,289.70 : x - Step 2: Convert to fraction form
225,891.70/311,730.64 = 125,289.70/x - Step 3: Cross multiply
225,891.70x = 311,730.64 × 125,289.70 - Step 4: Simplify right side
225,891.70x = 39,056,638,366.41 - Step 5: Solve for x
x = 39,056,638,366.41/225,891.70 - Step 6: Final answer
x = 172,899.84
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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.