Finding the Fourth Proportional to 236,873.62, 326,889.86 and 129,448.18
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Solution
The fourth proportional to 236,873.62, 326,889.86 and 129,448.18 is: 178,640.82
Step by Step Solution
- Step 1: Write the proportion equation
236,873.62 : 326,889.86 = 129,448.18 : x - Step 2: Convert to fraction form
236,873.62/326,889.86 = 129,448.18/x - Step 3: Cross multiply
236,873.62x = 326,889.86 × 129,448.18 - Step 4: Simplify right side
236,873.62x = 42,315,297,437.45 - Step 5: Solve for x
x = 42,315,297,437.45/236,873.62 - Step 6: Final answer
x = 178,640.82
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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.