Finding the Fourth Proportional to 236,642.46, 326,567.19 and 129,212.70
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Solution
The fourth proportional to 236,642.46, 326,567.19 and 129,212.70 is: 178,313.85
Step by Step Solution
- Step 1: Write the proportion equation
236,642.46 : 326,567.19 = 129,212.70 : x - Step 2: Convert to fraction form
236,642.46/326,567.19 = 129,212.70/x - Step 3: Cross multiply
236,642.46x = 326,567.19 × 129,212.70 - Step 4: Simplify right side
236,642.46x = 42,196,628,351.31 - Step 5: Solve for x
x = 42,196,628,351.31/236,642.46 - Step 6: Final answer
x = 178,313.85
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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.