Finding the Fourth Proportional to 317,209.98, 437,755.38 and 173,968.78
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Solution
The fourth proportional to 317,209.98, 437,755.38 and 173,968.78 is: 240,079.99
Step by Step Solution
- Step 1: Write the proportion equation
317,209.98 : 437,755.38 = 173,968.78 : x - Step 2: Convert to fraction form
317,209.98/437,755.38 = 173,968.78/x - Step 3: Cross multiply
317,209.98x = 437,755.38 × 173,968.78 - Step 4: Simplify right side
317,209.98x = 76,155,769,397.04 - Step 5: Solve for x
x = 76,155,769,397.04/317,209.98 - Step 6: Final answer
x = 240,079.99
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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.