Finding the Fourth Proportional to 300,771.99, 415,037.75 and 173,422.98
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Solution
The fourth proportional to 300,771.99, 415,037.75 and 173,422.98 is: 239,307.80
Step by Step Solution
- Step 1: Write the proportion equation
300,771.99 : 415,037.75 = 173,422.98 : x - Step 2: Convert to fraction form
300,771.99/415,037.75 = 173,422.98/x - Step 3: Cross multiply
300,771.99x = 415,037.75 × 173,422.98 - Step 4: Simplify right side
300,771.99x = 71,977,082,550.38 - Step 5: Solve for x
x = 71,977,082,550.38/300,771.99 - Step 6: Final answer
x = 239,307.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.