Finding the Fourth Proportional to 317,446.75, 438,075.21 and 174,209.14
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Solution
The fourth proportional to 317,446.75, 438,075.21 and 174,209.14 is: 240,407.90
Step by Step Solution
- Step 1: Write the proportion equation
317,446.75 : 438,075.21 = 174,209.14 : x - Step 2: Convert to fraction form
317,446.75/438,075.21 = 174,209.14/x - Step 3: Cross multiply
317,446.75x = 438,075.21 × 174,209.14 - Step 4: Simplify right side
317,446.75x = 76,316,705,589.42 - Step 5: Solve for x
x = 76,316,705,589.42/317,446.75 - Step 6: Final answer
x = 240,407.90
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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.