Finding the Fourth Proportional to 385,226.40, 577,882.80 and 118,984.80
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Solution
The fourth proportional to 385,226.40, 577,882.80 and 118,984.80 is: 178,490.54
Step by Step Solution
- Step 1: Write the proportion equation
385,226.40 : 577,882.80 = 118,984.80 : x - Step 2: Convert to fraction form
385,226.40/577,882.80 = 118,984.80/x - Step 3: Cross multiply
385,226.40x = 577,882.80 × 118,984.80 - Step 4: Simplify right side
385,226.40x = 68,759,269,381.44 - Step 5: Solve for x
x = 68,759,269,381.44/385,226.40 - Step 6: Final answer
x = 178,490.54
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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.