Finding the Fourth Proportional to 325,072.70, 487,609.05 and 207,266.30
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Solution
The fourth proportional to 325,072.70, 487,609.05 and 207,266.30 is: 310,899.45
Step by Step Solution
- Step 1: Write the proportion equation
325,072.70 : 487,609.05 = 207,266.30 : x - Step 2: Convert to fraction form
325,072.70/487,609.05 = 207,266.30/x - Step 3: Cross multiply
325,072.70x = 487,609.05 × 207,266.30 - Step 4: Simplify right side
325,072.70x = 101,064,923,640.02 - Step 5: Solve for x
x = 101,064,923,640.02/325,072.70 - Step 6: Final answer
x = 310,899.45
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Double scale
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Similar ratio
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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.