Finding the Fourth Proportional to 317,259.88, 437,819.28 and 174,021.12
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Solution
The fourth proportional to 317,259.88, 437,819.28 and 174,021.12 is: 240,149.50
Step by Step Solution
- Step 1: Write the proportion equation
317,259.88 : 437,819.28 = 174,021.12 : x - Step 2: Convert to fraction form
317,259.88/437,819.28 = 174,021.12/x - Step 3: Cross multiply
317,259.88x = 437,819.28 × 174,021.12 - Step 4: Simplify right side
317,259.88x = 76,189,801,463.19 - Step 5: Solve for x
x = 76,189,801,463.19/317,259.88 - Step 6: Final answer
x = 240,149.50
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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.