Finding the Fourth Proportional to 231,145.24, 318,982.62 and 129,178.84
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Solution
The fourth proportional to 231,145.24, 318,982.62 and 129,178.84 is: 178,268.02
Step by Step Solution
- Step 1: Write the proportion equation
231,145.24 : 318,982.62 = 129,178.84 : x - Step 2: Convert to fraction form
231,145.24/318,982.62 = 129,178.84/x - Step 3: Cross multiply
231,145.24x = 318,982.62 × 129,178.84 - Step 4: Simplify right side
231,145.24x = 41,205,804,831.76 - Step 5: Solve for x
x = 41,205,804,831.76/231,145.24 - Step 6: Final answer
x = 178,268.02
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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.