Finding the Fourth Proportional to 220,816.84, 331,009.26 and 87,652.84
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Solution
The fourth proportional to 220,816.84, 331,009.26 and 87,652.84 is: 131,393.52
Step by Step Solution
- Step 1: Write the proportion equation
220,816.84 : 331,009.26 = 87,652.84 : x - Step 2: Convert to fraction form
220,816.84/331,009.26 = 87,652.84/x - Step 3: Cross multiply
220,816.84x = 331,009.26 × 87,652.84 - Step 4: Simplify right side
220,816.84x = 29,013,901,705.30 - Step 5: Solve for x
x = 29,013,901,705.30/220,816.84 - Step 6: Final answer
x = 131,393.52
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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.