Finding the Fourth Proportional to 255,750.21, 383,861.93 and 129,479.18
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Solution
The fourth proportional to 255,750.21, 383,861.93 and 129,479.18 is: 194,338.55
Step by Step Solution
- Step 1: Write the proportion equation
255,750.21 : 383,861.93 = 129,479.18 : x - Step 2: Convert to fraction form
255,750.21/383,861.93 = 129,479.18/x - Step 3: Cross multiply
255,750.21x = 383,861.93 × 129,479.18 - Step 4: Simplify right side
255,750.21x = 49,702,125,362.91 - Step 5: Solve for x
x = 49,702,125,362.91/255,750.21 - Step 6: Final answer
x = 194,338.55
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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.