Finding the Fourth Proportional to 358,106.36, 494,021.12 and 214,617.30
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Solution
The fourth proportional to 358,106.36, 494,021.12 and 214,617.30 is: 296,072.59
Step by Step Solution
- Step 1: Write the proportion equation
358,106.36 : 494,021.12 = 214,617.30 : x - Step 2: Convert to fraction form
358,106.36/494,021.12 = 214,617.30/x - Step 3: Cross multiply
358,106.36x = 494,021.12 × 214,617.30 - Step 4: Simplify right side
358,106.36x = 106,025,478,917.38 - Step 5: Solve for x
x = 106,025,478,917.38/358,106.36 - Step 6: Final answer
x = 296,072.59
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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.