Finding the Fourth Proportional to 358,614.06, 494,721.18 and 231,330.66
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Solution
The fourth proportional to 358,614.06, 494,721.18 and 231,330.66 is: 319,129.09
Step by Step Solution
- Step 1: Write the proportion equation
358,614.06 : 494,721.18 = 231,330.66 : x - Step 2: Convert to fraction form
358,614.06/494,721.18 = 231,330.66/x - Step 3: Cross multiply
358,614.06x = 494,721.18 × 231,330.66 - Step 4: Simplify right side
358,614.06x = 114,444,177,085.38 - Step 5: Solve for x
x = 114,444,177,085.38/358,614.06 - Step 6: Final answer
x = 319,129.09
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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.