Finding the Fourth Proportional to 236,648.68, 326,576.76 and 129,219.46
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Solution
The fourth proportional to 236,648.68, 326,576.76 and 129,219.46 is: 178,323.72
Step by Step Solution
- Step 1: Write the proportion equation
236,648.68 : 326,576.76 = 129,219.46 : x - Step 2: Convert to fraction form
236,648.68/326,576.76 = 129,219.46/x - Step 3: Cross multiply
236,648.68x = 326,576.76 × 129,219.46 - Step 4: Simplify right side
236,648.68x = 42,200,072,575.75 - Step 5: Solve for x
x = 42,200,072,575.75/236,648.68 - Step 6: Final answer
x = 178,323.72
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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.