Finding the Fourth Proportional to 236,864.17, 326,858.78 and 129,435.08
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Solution
The fourth proportional to 236,864.17, 326,858.78 and 129,435.08 is: 178,612.88
Step by Step Solution
- Step 1: Write the proportion equation
236,864.17 : 326,858.78 = 129,435.08 : x - Step 2: Convert to fraction form
236,864.17/326,858.78 = 129,435.08/x - Step 3: Cross multiply
236,864.17x = 326,858.78 × 129,435.08 - Step 4: Simplify right side
236,864.17x = 42,306,991,690.83 - Step 5: Solve for x
x = 42,306,991,690.83/236,864.17 - Step 6: Final answer
x = 178,612.88
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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.