Finding the Fourth Proportional to 275,808.24, 413,736.11 and 76,128.66
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Solution
The fourth proportional to 275,808.24, 413,736.11 and 76,128.66 is: 114,199.55
Step by Step Solution
- Step 1: Write the proportion equation
275,808.24 : 413,736.11 = 76,128.66 : x - Step 2: Convert to fraction form
275,808.24/413,736.11 = 76,128.66/x - Step 3: Cross multiply
275,808.24x = 413,736.11 × 76,128.66 - Step 4: Simplify right side
275,808.24x = 31,497,175,647.91 - Step 5: Solve for x
x = 31,497,175,647.91/275,808.24 - Step 6: Final answer
x = 114,199.55
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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.