Finding the Fourth Proportional to 190,732.74, 263,128.95 and 115,237.50
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Solution
The fourth proportional to 190,732.74, 263,128.95 and 115,237.50 is: 158,978.07
Step by Step Solution
- Step 1: Write the proportion equation
190,732.74 : 263,128.95 = 115,237.50 : x - Step 2: Convert to fraction form
190,732.74/263,128.95 = 115,237.50/x - Step 3: Cross multiply
190,732.74x = 263,128.95 × 115,237.50 - Step 4: Simplify right side
190,732.74x = 30,322,322,375.63 - Step 5: Solve for x
x = 30,322,322,375.63/190,732.74 - Step 6: Final answer
x = 158,978.07
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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.