Finding the Fourth Proportional to 138,951.84, 208,405.98 and 44,169.60
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Solution
The fourth proportional to 138,951.84, 208,405.98 and 44,169.60 is: 66,247.48
Step by Step Solution
- Step 1: Write the proportion equation
138,951.84 : 208,405.98 = 44,169.60 : x - Step 2: Convert to fraction form
138,951.84/208,405.98 = 44,169.60/x - Step 3: Cross multiply
138,951.84x = 208,405.98 × 44,169.60 - Step 4: Simplify right side
138,951.84x = 9,205,208,774.21 - Step 5: Solve for x
x = 9,205,208,774.21/138,951.84 - Step 6: Final answer
x = 66,247.48
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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.