Finding the Fourth Proportional to 392,977.44, 542,308.77 and 214,129.44
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Solution
The fourth proportional to 392,977.44, 542,308.77 and 214,129.44 is: 295,498.57
Step by Step Solution
- Step 1: Write the proportion equation
392,977.44 : 542,308.77 = 214,129.44 : x - Step 2: Convert to fraction form
392,977.44/542,308.77 = 214,129.44/x - Step 3: Cross multiply
392,977.44x = 542,308.77 × 214,129.44 - Step 4: Simplify right side
392,977.44x = 116,124,273,227.19 - Step 5: Solve for x
x = 116,124,273,227.19/392,977.44 - Step 6: Final answer
x = 295,498.57
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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.