Finding the Fourth Proportional to 236,419.36, 326,252.41 and 128,989.36
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Solution
The fourth proportional to 236,419.36, 326,252.41 and 128,989.36 is: 178,001.88
Step by Step Solution
- Step 1: Write the proportion equation
236,419.36 : 326,252.41 = 128,989.36 : x - Step 2: Convert to fraction form
236,419.36/326,252.41 = 128,989.36/x - Step 3: Cross multiply
236,419.36x = 326,252.41 × 128,989.36 - Step 4: Simplify right side
236,419.36x = 42,083,089,649.70 - Step 5: Solve for x
x = 42,083,089,649.70/236,419.36 - Step 6: Final answer
x = 178,001.88
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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.