Finding the Fourth Proportional to 377,807.80, 566,711.70 and 128,489.80
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Solution
The fourth proportional to 377,807.80, 566,711.70 and 128,489.80 is: 192,734.70
Step by Step Solution
- Step 1: Write the proportion equation
377,807.80 : 566,711.70 = 128,489.80 : x - Step 2: Convert to fraction form
377,807.80/566,711.70 = 128,489.80/x - Step 3: Cross multiply
377,807.80x = 566,711.70 × 128,489.80 - Step 4: Simplify right side
377,807.80x = 72,816,672,990.66 - Step 5: Solve for x
x = 72,816,672,990.66/377,807.80 - Step 6: Final answer
x = 192,734.70
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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.