Finding the Fourth Proportional to 320,967.08, 481,515.42 and 221,175.08
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Solution
The fourth proportional to 320,967.08, 481,515.42 and 221,175.08 is: 331,807.27
Step by Step Solution
- Step 1: Write the proportion equation
320,967.08 : 481,515.42 = 221,175.08 : x - Step 2: Convert to fraction form
320,967.08/481,515.42 = 221,175.08/x - Step 3: Cross multiply
320,967.08x = 481,515.42 × 221,175.08 - Step 4: Simplify right side
320,967.08x = 106,499,211,539.73 - Step 5: Solve for x
x = 106,499,211,539.73/320,967.08 - Step 6: Final answer
x = 331,807.27
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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.