Finding the Fourth Proportional to 255,929.46, 384,129.81 and 129,657.55
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Solution
The fourth proportional to 255,929.46, 384,129.81 and 129,657.55 is: 194,605.69
Step by Step Solution
- Step 1: Write the proportion equation
255,929.46 : 384,129.81 = 129,657.55 : x - Step 2: Convert to fraction form
255,929.46/384,129.81 = 129,657.55/x - Step 3: Cross multiply
255,929.46x = 384,129.81 × 129,657.55 - Step 4: Simplify right side
255,929.46x = 49,805,328,719.31 - Step 5: Solve for x
x = 49,805,328,719.31/255,929.46 - Step 6: Final answer
x = 194,605.69
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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.