Finding the Fourth Proportional to 254,431.80, 381,647.70 and 149,455.80
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Solution
The fourth proportional to 254,431.80, 381,647.70 and 149,455.80 is: 224,183.70
Step by Step Solution
- Step 1: Write the proportion equation
254,431.80 : 381,647.70 = 149,455.80 : x - Step 2: Convert to fraction form
254,431.80/381,647.70 = 149,455.80/x - Step 3: Cross multiply
254,431.80x = 381,647.70 × 149,455.80 - Step 4: Simplify right side
254,431.80x = 57,039,462,321.66 - Step 5: Solve for x
x = 57,039,462,321.66/254,431.80 - Step 6: Final answer
x = 224,183.70
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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.