Finding the Fourth Proportional to 255,635.70, 383,165.55 and 122,579.70
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Solution
The fourth proportional to 255,635.70, 383,165.55 and 122,579.70 is: 183,731.45
Step by Step Solution
- Step 1: Write the proportion equation
255,635.70 : 383,165.55 = 122,579.70 : x - Step 2: Convert to fraction form
255,635.70/383,165.55 = 122,579.70/x - Step 3: Cross multiply
255,635.70x = 383,165.55 × 122,579.70 - Step 4: Simplify right side
255,635.70x = 46,968,318,169.34 - Step 5: Solve for x
x = 46,968,318,169.34/255,635.70 - Step 6: Final answer
x = 183,731.45
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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.