Finding the Fourth Proportional to 236,642.68, 326,580.18 and 129,222.70
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Solution
The fourth proportional to 236,642.68, 326,580.18 and 129,222.70 is: 178,334.58
Step by Step Solution
- Step 1: Write the proportion equation
236,642.68 : 326,580.18 = 129,222.70 : x - Step 2: Convert to fraction form
236,642.68/326,580.18 = 129,222.70/x - Step 3: Cross multiply
236,642.68x = 326,580.18 × 129,222.70 - Step 4: Simplify right side
236,642.68x = 42,201,572,626.09 - Step 5: Solve for x
x = 42,201,572,626.09/236,642.68 - Step 6: Final answer
x = 178,334.58
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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.