Finding the Fourth Proportional to 236,679.42, 326,615.44 and 129,249.12
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Solution
The fourth proportional to 236,679.42, 326,615.44 and 129,249.12 is: 178,362.61
Step by Step Solution
- Step 1: Write the proportion equation
236,679.42 : 326,615.44 = 129,249.12 : x - Step 2: Convert to fraction form
236,679.42/326,615.44 = 129,249.12/x - Step 3: Cross multiply
236,679.42x = 326,615.44 × 129,249.12 - Step 4: Simplify right side
236,679.42x = 42,214,758,198.41 - Step 5: Solve for x
x = 42,214,758,198.41/236,679.42 - Step 6: Final answer
x = 178,362.61
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1.5x scale
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.