Finding the Fourth Proportional to 285,935.48, 394,638.26 and 158,652.08
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Solution
The fourth proportional to 285,935.48, 394,638.26 and 158,652.08 is: 218,966.11
Step by Step Solution
- Step 1: Write the proportion equation
285,935.48 : 394,638.26 = 158,652.08 : x - Step 2: Convert to fraction form
285,935.48/394,638.26 = 158,652.08/x - Step 3: Cross multiply
285,935.48x = 394,638.26 × 158,652.08 - Step 4: Simplify right side
285,935.48x = 62,610,180,796.58 - Step 5: Solve for x
x = 62,610,180,796.58/285,935.48 - Step 6: Final answer
x = 218,966.11
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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.