Finding the Fourth Proportional to 214,905.40, 322,358.10 and 57,149.80
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Solution
The fourth proportional to 214,905.40, 322,358.10 and 57,149.80 is: 85,724.70
Step by Step Solution
- Step 1: Write the proportion equation
214,905.40 : 322,358.10 = 57,149.80 : x - Step 2: Convert to fraction form
214,905.40/322,358.10 = 57,149.80/x - Step 3: Cross multiply
214,905.40x = 322,358.10 × 57,149.80 - Step 4: Simplify right side
214,905.40x = 18,422,700,943.38 - Step 5: Solve for x
x = 18,422,700,943.38/214,905.40 - Step 6: Final answer
x = 85,724.70
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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.