Finding the Fourth Proportional to 285,682.50, 394,242.21 and 158,377.14
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Solution
The fourth proportional to 285,682.50, 394,242.21 and 158,377.14 is: 218,560.65
Step by Step Solution
- Step 1: Write the proportion equation
285,682.50 : 394,242.21 = 158,377.14 : x - Step 2: Convert to fraction form
285,682.50/394,242.21 = 158,377.14/x - Step 3: Cross multiply
285,682.50x = 394,242.21 × 158,377.14 - Step 4: Simplify right side
285,682.50x = 62,438,953,687.08 - Step 5: Solve for x
x = 62,438,953,687.08/285,682.50 - Step 6: Final answer
x = 218,560.65
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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.