Finding the Fourth Proportional to 206,865.70, 310,292.34 and 57,115.13
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Solution
The fourth proportional to 206,865.70, 310,292.34 and 57,115.13 is: 85,670.98
Step by Step Solution
- Step 1: Write the proportion equation
206,865.70 : 310,292.34 = 57,115.13 : x - Step 2: Convert to fraction form
206,865.70/310,292.34 = 57,115.13/x - Step 3: Cross multiply
206,865.70x = 310,292.34 × 57,115.13 - Step 4: Simplify right side
206,865.70x = 17,722,387,337.10 - Step 5: Solve for x
x = 17,722,387,337.10/206,865.70 - Step 6: Final answer
x = 85,670.98
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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.