Finding the Fourth Proportional to 159,983.84, 239,961.72 and 147,455.84
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Solution
The fourth proportional to 159,983.84, 239,961.72 and 147,455.84 is: 221,170.82
Step by Step Solution
- Step 1: Write the proportion equation
159,983.84 : 239,961.72 = 147,455.84 : x - Step 2: Convert to fraction form
159,983.84/239,961.72 = 147,455.84/x - Step 3: Cross multiply
159,983.84x = 239,961.72 × 147,455.84 - Step 4: Simplify right side
159,983.84x = 35,383,756,990.44 - Step 5: Solve for x
x = 35,383,756,990.44/159,983.84 - Step 6: Final answer
x = 221,170.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.