Finding the Fourth Proportional to 397,315.38, 548,291.36 and 216,027.31
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Solution
The fourth proportional to 397,315.38, 548,291.36 and 216,027.31 is: 298,115.58
Step by Step Solution
- Step 1: Write the proportion equation
397,315.38 : 548,291.36 = 216,027.31 : x - Step 2: Convert to fraction form
397,315.38/548,291.36 = 216,027.31/x - Step 3: Cross multiply
397,315.38x = 548,291.36 × 216,027.31 - Step 4: Simplify right side
397,315.38x = 118,445,906,579.27 - Step 5: Solve for x
x = 118,445,906,579.27/397,315.38 - Step 6: Final answer
x = 298,115.58
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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.