Finding the Fourth Proportional to 395,319.68, 545,540.34 and 214,031.56
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Solution
The fourth proportional to 395,319.68, 545,540.34 and 214,031.56 is: 295,363.11
Step by Step Solution
- Step 1: Write the proportion equation
395,319.68 : 545,540.34 = 214,031.56 : x - Step 2: Convert to fraction form
395,319.68/545,540.34 = 214,031.56/x - Step 3: Cross multiply
395,319.68x = 545,540.34 × 214,031.56 - Step 4: Simplify right side
395,319.68x = 116,762,850,013.13 - Step 5: Solve for x
x = 116,762,850,013.13/395,319.68 - Step 6: Final answer
x = 295,363.11
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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.