Finding the Fourth Proportional to 236,558.10, 326,438.37 and 129,132.66
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Solution
The fourth proportional to 236,558.10, 326,438.37 and 129,132.66 is: 178,196.63
Step by Step Solution
- Step 1: Write the proportion equation
236,558.10 : 326,438.37 = 129,132.66 : x - Step 2: Convert to fraction form
236,558.10/326,438.37 = 129,132.66/x - Step 3: Cross multiply
236,558.10x = 326,438.37 × 129,132.66 - Step 4: Simplify right side
236,558.10x = 42,153,855,044.16 - Step 5: Solve for x
x = 42,153,855,044.16/236,558.10 - Step 6: Final answer
x = 178,196.63
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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.