Finding the Fourth Proportional to 347,279.20, 520,918.80 and 110,645.80
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Solution
The fourth proportional to 347,279.20, 520,918.80 and 110,645.80 is: 165,968.70
Step by Step Solution
- Step 1: Write the proportion equation
347,279.20 : 520,918.80 = 110,645.80 : x - Step 2: Convert to fraction form
347,279.20/520,918.80 = 110,645.80/x - Step 3: Cross multiply
347,279.20x = 520,918.80 × 110,645.80 - Step 4: Simplify right side
347,279.20x = 57,637,477,361.04 - Step 5: Solve for x
x = 57,637,477,361.04/347,279.20 - Step 6: Final answer
x = 165,968.70
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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.