Finding the Fourth Proportional to 147,832.20, 221,699.70 and 54,325.80
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Solution
The fourth proportional to 147,832.20, 221,699.70 and 54,325.80 is: 81,470.84
Step by Step Solution
- Step 1: Write the proportion equation
147,832.20 : 221,699.70 = 54,325.80 : x - Step 2: Convert to fraction form
147,832.20/221,699.70 = 54,325.80/x - Step 3: Cross multiply
147,832.20x = 221,699.70 × 54,325.80 - Step 4: Simplify right side
147,832.20x = 12,044,013,562.26 - Step 5: Solve for x
x = 12,044,013,562.26/147,832.20 - Step 6: Final answer
x = 81,470.84
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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.