Finding the Fourth Proportional to 386,801.19, 533,777.24 and 214,709.20
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Solution
The fourth proportional to 386,801.19, 533,777.24 and 214,709.20 is: 296,294.03
Step by Step Solution
- Step 1: Write the proportion equation
386,801.19 : 533,777.24 = 214,709.20 : x - Step 2: Convert to fraction form
386,801.19/533,777.24 = 214,709.20/x - Step 3: Cross multiply
386,801.19x = 533,777.24 × 214,709.20 - Step 4: Simplify right side
386,801.19x = 114,606,883,380.94 - Step 5: Solve for x
x = 114,606,883,380.94/386,801.19 - Step 6: Final answer
x = 296,294.03
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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.