Finding the Fourth Proportional to 236,575.70, 326,475.05 and 129,145.80
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Solution
The fourth proportional to 236,575.70, 326,475.05 and 129,145.80 is: 178,221.52
Step by Step Solution
- Step 1: Write the proportion equation
236,575.70 : 326,475.05 = 129,145.80 : x - Step 2: Convert to fraction form
236,575.70/326,475.05 = 129,145.80/x - Step 3: Cross multiply
236,575.70x = 326,475.05 × 129,145.80 - Step 4: Simplify right side
236,575.70x = 42,162,880,866.56 - Step 5: Solve for x
x = 42,162,880,866.56/236,575.70 - Step 6: Final answer
x = 178,221.52
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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.