Finding the Fourth Proportional to 391,052.26, 539,652.11 and 212,204.26
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Solution
The fourth proportional to 391,052.26, 539,652.11 and 212,204.26 is: 292,841.87
Step by Step Solution
- Step 1: Write the proportion equation
391,052.26 : 539,652.11 = 212,204.26 : x - Step 2: Convert to fraction form
391,052.26/539,652.11 = 212,204.26/x - Step 3: Cross multiply
391,052.26x = 539,652.11 × 212,204.26 - Step 4: Simplify right side
391,052.26x = 114,516,476,659.99 - Step 5: Solve for x
x = 114,516,476,659.99/391,052.26 - Step 6: Final answer
x = 292,841.87
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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.