Finding the Fourth Proportional to 285,972.96, 394,689.84 and 158,689.52
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Solution
The fourth proportional to 285,972.96, 394,689.84 and 158,689.52 is: 219,017.70
Step by Step Solution
- Step 1: Write the proportion equation
285,972.96 : 394,689.84 = 158,689.52 : x - Step 2: Convert to fraction form
285,972.96/394,689.84 = 158,689.52/x - Step 3: Cross multiply
285,972.96x = 394,689.84 × 158,689.52 - Step 4: Simplify right side
285,972.96x = 62,633,141,258.48 - Step 5: Solve for x
x = 62,633,141,258.48/285,972.96 - Step 6: Final answer
x = 219,017.70
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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.