Finding the Fourth Proportional to 385,585.74, 578,478.42 and 225,796.70
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Solution
The fourth proportional to 385,585.74, 578,478.42 and 225,796.70 is: 338,753.50
Step by Step Solution
- Step 1: Write the proportion equation
385,585.74 : 578,478.42 = 225,796.70 : x - Step 2: Convert to fraction form
385,585.74/578,478.42 = 225,796.70/x - Step 3: Cross multiply
385,585.74x = 578,478.42 × 225,796.70 - Step 4: Simplify right side
385,585.74x = 130,618,519,703.41 - Step 5: Solve for x
x = 130,618,519,703.41/385,585.74 - Step 6: Final answer
x = 338,753.50
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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.