Finding the Fourth Proportional to 217,825.28, 326,167.68 and 142,709.12
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Solution
The fourth proportional to 217,825.28, 326,167.68 and 142,709.12 is: 213,690.08
Step by Step Solution
- Step 1: Write the proportion equation
217,825.28 : 326,167.68 = 142,709.12 : x - Step 2: Convert to fraction form
217,825.28/326,167.68 = 142,709.12/x - Step 3: Cross multiply
217,825.28x = 326,167.68 × 142,709.12 - Step 4: Simplify right side
217,825.28x = 46,547,102,585.24 - Step 5: Solve for x
x = 46,547,102,585.24/217,825.28 - Step 6: Final answer
x = 213,690.08
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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.