Finding the Fourth Proportional to 217,758.52, 326,764.74 and 91,388.08
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Solution
The fourth proportional to 217,758.52, 326,764.74 and 91,388.08 is: 137,135.40
Step by Step Solution
- Step 1: Write the proportion equation
217,758.52 : 326,764.74 = 91,388.08 : x - Step 2: Convert to fraction form
217,758.52/326,764.74 = 91,388.08/x - Step 3: Cross multiply
217,758.52x = 326,764.74 × 91,388.08 - Step 4: Simplify right side
217,758.52x = 29,862,402,200.30 - Step 5: Solve for x
x = 29,862,402,200.30/217,758.52 - Step 6: Final answer
x = 137,135.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.