Finding the Fourth Proportional to 255,631.80, 383,447.70 and 193,423.80
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Solution
The fourth proportional to 255,631.80, 383,447.70 and 193,423.80 is: 290,135.70
Step by Step Solution
- Step 1: Write the proportion equation
255,631.80 : 383,447.70 = 193,423.80 : x - Step 2: Convert to fraction form
255,631.80/383,447.70 = 193,423.80/x - Step 3: Cross multiply
255,631.80x = 383,447.70 × 193,423.80 - Step 4: Simplify right side
255,631.80x = 74,167,911,235.26 - Step 5: Solve for x
x = 74,167,911,235.26/255,631.80 - Step 6: Final answer
x = 290,135.70
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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.