Finding the Fourth Proportional to 392,983.52, 542,317.26 and 214,135.52
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Solution
The fourth proportional to 392,983.52, 542,317.26 and 214,135.52 is: 295,507.02
Step by Step Solution
- Step 1: Write the proportion equation
392,983.52 : 542,317.26 = 214,135.52 : x - Step 2: Convert to fraction form
392,983.52/542,317.26 = 214,135.52/x - Step 3: Cross multiply
392,983.52x = 542,317.26 × 214,135.52 - Step 4: Simplify right side
392,983.52x = 116,129,388,475.08 - Step 5: Solve for x
x = 116,129,388,475.08/392,983.52 - Step 6: Final answer
x = 295,507.02
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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.