Finding the Fourth Proportional to 236,886.78, 326,902.98 and 129,457.44
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Solution
The fourth proportional to 236,886.78, 326,902.98 and 129,457.44 is: 178,650.84
Step by Step Solution
- Step 1: Write the proportion equation
236,886.78 : 326,902.98 = 129,457.44 : x - Step 2: Convert to fraction form
236,886.78/326,902.98 = 129,457.44/x - Step 3: Cross multiply
236,886.78x = 326,902.98 × 129,457.44 - Step 4: Simplify right side
236,886.78x = 42,320,022,919.17 - Step 5: Solve for x
x = 42,320,022,919.17/236,886.78 - Step 6: Final answer
x = 178,650.84
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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.