Finding the Fourth Proportional to 217,415.60, 326,107.20 and 91,023.20
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Solution
The fourth proportional to 217,415.60, 326,107.20 and 91,023.20 is: 136,528.02
Step by Step Solution
- Step 1: Write the proportion equation
217,415.60 : 326,107.20 = 91,023.20 : x - Step 2: Convert to fraction form
217,415.60/326,107.20 = 91,023.20/x - Step 3: Cross multiply
217,415.60x = 326,107.20 × 91,023.20 - Step 4: Simplify right side
217,415.60x = 29,683,320,887.04 - Step 5: Solve for x
x = 29,683,320,887.04/217,415.60 - Step 6: Final answer
x = 136,528.02
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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.