Finding the Fourth Proportional to 236,889.90, 326,907.36 and 129,460.68
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Solution
The fourth proportional to 236,889.90, 326,907.36 and 129,460.68 is: 178,655.35
Step by Step Solution
- Step 1: Write the proportion equation
236,889.90 : 326,907.36 = 129,460.68 : x - Step 2: Convert to fraction form
236,889.90/326,907.36 = 129,460.68/x - Step 3: Cross multiply
236,889.90x = 326,907.36 × 129,460.68 - Step 4: Simplify right side
236,889.90x = 42,321,649,122.60 - Step 5: Solve for x
x = 42,321,649,122.60/236,889.90 - Step 6: Final answer
x = 178,655.35
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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.