Finding the Fourth Proportional to 291,674.40, 437,511.60 and 125,786.40
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Solution
The fourth proportional to 291,674.40, 437,511.60 and 125,786.40 is: 188,679.60
Step by Step Solution
- Step 1: Write the proportion equation
291,674.40 : 437,511.60 = 125,786.40 : x - Step 2: Convert to fraction form
291,674.40/437,511.60 = 125,786.40/x - Step 3: Cross multiply
291,674.40x = 437,511.60 × 125,786.40 - Step 4: Simplify right side
291,674.40x = 55,033,009,122.24 - Step 5: Solve for x
x = 55,033,009,122.24/291,674.40 - Step 6: Final answer
x = 188,679.60
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.