Finding the Fourth Proportional to 331,979.74, 458,167.52 and 202,993.81
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Solution
The fourth proportional to 331,979.74, 458,167.52 and 202,993.81 is: 280,153.15
Step by Step Solution
- Step 1: Write the proportion equation
331,979.74 : 458,167.52 = 202,993.81 : x - Step 2: Convert to fraction form
331,979.74/458,167.52 = 202,993.81/x - Step 3: Cross multiply
331,979.74x = 458,167.52 × 202,993.81 - Step 4: Simplify right side
331,979.74x = 93,005,170,503.05 - Step 5: Solve for x
x = 93,005,170,503.05/331,979.74 - Step 6: Final answer
x = 280,153.15
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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.