Finding the Fourth Proportional to 263,987.28, 364,303.62 and 143,128.44
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Solution
The fourth proportional to 263,987.28, 364,303.62 and 143,128.44 is: 197,517.88
Step by Step Solution
- Step 1: Write the proportion equation
263,987.28 : 364,303.62 = 143,128.44 : x - Step 2: Convert to fraction form
263,987.28/364,303.62 = 143,128.44/x - Step 3: Cross multiply
263,987.28x = 364,303.62 × 143,128.44 - Step 4: Simplify right side
263,987.28x = 52,142,208,816.95 - Step 5: Solve for x
x = 52,142,208,816.95/263,987.28 - Step 6: Final answer
x = 197,517.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.