Finding the Fourth Proportional to 285,975.56, 394,646.28 and 158,652.07
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Solution
The fourth proportional to 285,975.56, 394,646.28 and 158,652.07 is: 218,939.85
Step by Step Solution
- Step 1: Write the proportion equation
285,975.56 : 394,646.28 = 158,652.07 : x - Step 2: Convert to fraction form
285,975.56/394,646.28 = 158,652.07/x - Step 3: Cross multiply
285,975.56x = 394,646.28 × 158,652.07 - Step 4: Simplify right side
285,975.56x = 62,611,447,658.24 - Step 5: Solve for x
x = 62,611,447,658.24/285,975.56 - Step 6: Final answer
x = 218,939.85
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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.