Finding the Fourth Proportional to 509,943.80, 764,915.70 and 177,519.80
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Solution
The fourth proportional to 509,943.80, 764,915.70 and 177,519.80 is: 266,279.70
Step by Step Solution
- Step 1: Write the proportion equation
509,943.80 : 764,915.70 = 177,519.80 : x - Step 2: Convert to fraction form
509,943.80/764,915.70 = 177,519.80/x - Step 3: Cross multiply
509,943.80x = 764,915.70 × 177,519.80 - Step 4: Simplify right side
509,943.80x = 135,787,682,080.86 - Step 5: Solve for x
x = 135,787,682,080.86/509,943.80 - Step 6: Final answer
x = 266,279.70
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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.