Finding the Fourth Proportional to 641,421.51, 962,121.95 and 220,701.03
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Solution
The fourth proportional to 641,421.51, 962,121.95 and 220,701.03 is: 331,047.99
Step by Step Solution
- Step 1: Write the proportion equation
641,421.51 : 962,121.95 = 220,701.03 : x - Step 2: Convert to fraction form
641,421.51/962,121.95 = 220,701.03/x - Step 3: Cross multiply
641,421.51x = 962,121.95 × 220,701.03 - Step 4: Simplify right side
641,421.51x = 212,341,304,247.10 - Step 5: Solve for x
x = 212,341,304,247.10/641,421.51 - Step 6: Final answer
x = 331,047.99
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1.5x scale
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.