Finding the Fourth Proportional to 282,715.38, 390,203.97 and 167,971.94
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Solution
The fourth proportional to 282,715.38, 390,203.97 and 167,971.94 is: 231,835.00
Step by Step Solution
- Step 1: Write the proportion equation
282,715.38 : 390,203.97 = 167,971.94 : x - Step 2: Convert to fraction form
282,715.38/390,203.97 = 167,971.94/x - Step 3: Cross multiply
282,715.38x = 390,203.97 × 167,971.94 - Step 4: Simplify right side
282,715.38x = 65,543,318,812.11 - Step 5: Solve for x
x = 65,543,318,812.11/282,715.38 - Step 6: Final answer
x = 231,835.00
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1.5x scale
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.