Finding the Fourth Proportional to 128,279.40, 192,400.98 and 44,038.08
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Solution
The fourth proportional to 128,279.40, 192,400.98 and 44,038.08 is: 66,050.90
Step by Step Solution
- Step 1: Write the proportion equation
128,279.40 : 192,400.98 = 44,038.08 : x - Step 2: Convert to fraction form
128,279.40/192,400.98 = 44,038.08/x - Step 3: Cross multiply
128,279.40x = 192,400.98 × 44,038.08 - Step 4: Simplify right side
128,279.40x = 8,472,969,749.32 - Step 5: Solve for x
x = 8,472,969,749.32/128,279.40 - Step 6: Final answer
x = 66,050.90
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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.