Finding the Fourth Proportional to 331,074.72, 456,979.50 and 216,370.08
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Solution
The fourth proportional to 331,074.72, 456,979.50 and 216,370.08 is: 298,653.70
Step by Step Solution
- Step 1: Write the proportion equation
331,074.72 : 456,979.50 = 216,370.08 : x - Step 2: Convert to fraction form
331,074.72/456,979.50 = 216,370.08/x - Step 3: Cross multiply
331,074.72x = 456,979.50 × 216,370.08 - Step 4: Simplify right side
331,074.72x = 98,876,690,973.36 - Step 5: Solve for x
x = 98,876,690,973.36/331,074.72 - Step 6: Final answer
x = 298,653.70
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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.