Finding the Fourth Proportional to 664,122.19, 996,214.41 and 214,878.23
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Solution
The fourth proportional to 664,122.19, 996,214.41 and 214,878.23 is: 322,327.42
Step by Step Solution
- Step 1: Write the proportion equation
664,122.19 : 996,214.41 = 214,878.23 : x - Step 2: Convert to fraction form
664,122.19/996,214.41 = 214,878.23/x - Step 3: Cross multiply
664,122.19x = 996,214.41 × 214,878.23 - Step 4: Simplify right side
664,122.19x = 214,064,789,121.29 - Step 5: Solve for x
x = 214,064,789,121.29/664,122.19 - Step 6: Final answer
x = 322,327.42
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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.