Finding the Fourth Proportional to 664,276.30, 996,511.65 and 214,920.70
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Solution
The fourth proportional to 664,276.30, 996,511.65 and 214,920.70 is: 322,412.50
Step by Step Solution
- Step 1: Write the proportion equation
664,276.30 : 996,511.65 = 214,920.70 : x - Step 2: Convert to fraction form
664,276.30/996,511.65 = 214,920.70/x - Step 3: Cross multiply
664,276.30x = 996,511.65 × 214,920.70 - Step 4: Simplify right side
664,276.30x = 214,170,981,376.16 - Step 5: Solve for x
x = 214,170,981,376.16/664,276.30 - Step 6: Final answer
x = 322,412.50
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1.5x scale
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.