Finding the Fourth Proportional to 293,536.80, 440,305.20 and 259,711.20
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Solution
The fourth proportional to 293,536.80, 440,305.20 and 259,711.20 is: 389,566.80
Step by Step Solution
- Step 1: Write the proportion equation
293,536.80 : 440,305.20 = 259,711.20 : x - Step 2: Convert to fraction form
293,536.80/440,305.20 = 259,711.20/x - Step 3: Cross multiply
293,536.80x = 440,305.20 × 259,711.20 - Step 4: Simplify right side
293,536.80x = 114,352,191,858.24 - Step 5: Solve for x
x = 114,352,191,858.24/293,536.80 - Step 6: Final answer
x = 389,566.80
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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.