Finding the Fourth Proportional to 391,082.06, 539,693.26 and 212,234.06
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Solution
The fourth proportional to 391,082.06, 539,693.26 and 212,234.06 is: 292,883.01
Step by Step Solution
- Step 1: Write the proportion equation
391,082.06 : 539,693.26 = 212,234.06 : x - Step 2: Convert to fraction form
391,082.06/539,693.26 = 212,234.06/x - Step 3: Cross multiply
391,082.06x = 539,693.26 × 212,234.06 - Step 4: Simplify right side
391,082.06x = 114,541,292,543.08 - Step 5: Solve for x
x = 114,541,292,543.08/391,082.06 - Step 6: Final answer
x = 292,883.01
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.