Finding the Fourth Proportional to 317,839.97, 439,007.70 and 237,624.05
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Solution
The fourth proportional to 317,839.97, 439,007.70 and 237,624.05 is: 328,211.67
Step by Step Solution
- Step 1: Write the proportion equation
317,839.97 : 439,007.70 = 237,624.05 : x - Step 2: Convert to fraction form
317,839.97/439,007.70 = 237,624.05/x - Step 3: Cross multiply
317,839.97x = 439,007.70 × 237,624.05 - Step 4: Simplify right side
317,839.97x = 104,318,785,460.15 - Step 5: Solve for x
x = 104,318,785,460.15/317,839.97 - Step 6: Final answer
x = 328,211.67
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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.